This was user error. As betaelmer explained, I had switched to DisplayPort 1.2 on the Dell between 10.9.2 and 10.9.3 and I didn't realize the bandwidth implications. A 4K monitor at 60Hz essentially uses all of the bandwidth of the Thunderbolt bus, so there is not enough remaining for the TBD with it running. I switched back to DsiplayPort 1.1 and all is well.
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Apple Releases OS X 10.9.3 With Enhanced Support for 4K Displays, Syncing Improvements
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Yes, I can confirm that it works. The 15" MBP has Iris Pro, while the 13" does not. The 15" Iris Pro (only) can push out 4k/60hz just fine with the 10.9.3 update.
Downloaded and installed with no problems. Thanks to Apple for still making the Combo Update available and thanks to MR for providing a link to it. 
Thanks!
You are correct! I left my iMac sitting for a few hours with the Mail app running and, sure enough, Mail is more responsive now. I guess it just had to do all of that reindexing!
The only anomaly I'm seeing now is how quickly new emails get listed in the inbox when I check Mail. With Mountain Lion, when I clicked "Check Mail", all of the bundle of new incoming email would all appear at the same time. Now, with Mavericks, doing the same thing the emails get listed (somewhat slowly) one at a time. It seems slower, but I'm not sure if it really is slower. With Mountain Lion, there was probably a longer pause (period of nothing obvious happening) before all of the emails appeared. With Mavericks, it might start listing them (one at a time) more quickly. Hard to say.
It's not a problem, it's just different.
Mark
It's a limitation from Microsoft Exchange, not from Apple. Microsoft previously used MAPI but as of Exchange 2007 they are migrating to EWS. This causes Microsoft Entourage to stop working. You need to install a special update that adds EWS support to Entourage. However, this is only support with Exchange 2007. If you have 2010 you are encouraged to use Outlook for Mac (which only has EWS support). Other clients such as OS X Mail also use EWS to connect to Exchange. Currently the only client not using EWS is Outlook (the Windows version only!) there used to be Evolution but it's development is dead (simply put). Outlook on Windows still uses MAPI.
The use of EWS is the reason why only Exhange 2007 SP1 and upwards are supported (the reason for SP1 is due to some format that is the same in 2007 SP1 and 2010; plain 2007 uses a different one apparently). Exchange 2003 doesn't have EWS.
EWS is for non-mobile clients (desktops & laptops). For mobile clients (smartphones & tablets) they have Exchange ActiveSync which is something completely different. IIRC they came up with EAS first, EWS later. That's why iOS had Exchange support before OS X.
EWS does support push notifications (see previous EWS link) but it doesn't work reliably: Exchange Server 2010 Push Notifications does not work (kb979563). That's why they came up with streaming notifications in Exchange 2010 SP1. Apple probably wants to or may have to keep support at a certain level where they are unable to implement the changes as of Exchange 2010 SP1. They may also have chosen not to support notifications since it doesn't work all that well.
So saying that Mail most definitely does do push whereas Microsoft clearly tells you that it is unreliable is not a very smart thing to do. The same applies to other clients that use EWS, even the official Microsoft ones.
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tried option-clicking "scaled" in display pref? that gave me a few more options including some hidpi modes.
After updating to 10.9.3 I am finding Safari a lot more responsive then it was with 10.9.2. With 10.9.2. I would get a lot of pauses when loading web pages. Now the pages load pretty much instantly.
EDIT: Given the above, I think it is fair to say that Safari is snappier in 10.9.3
EDIT: Given the above, I think it is fair to say that Safari is snappier in 10.9.3
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Attachments
New GPU driver for my retina macbook pro.
old - GPU Driver Version: 8.24.9 310.40.25f01
new - GPU Driver Version: 8.26.21 310.40.35f08
old - GPU Driver Version: 8.24.9 310.40.25f01
new - GPU Driver Version: 8.26.21 310.40.35f08
oh ****. and this should be a supported setup...
tried that, no dice.
I would say so. I have no problems with it and everything is running as before.
Correct. iOS uses active sync and push. Mail.app uses EWS and polls for new mail.
As stated, MS only licence active sync for mobile.
That settles it, I'm gonna sit back a bit longer and let this one play out.
My goldfish died...more fuel for the fire.
So when I download Mavericks does it begin to install automatically or does it put a .dmg file on the desktop for me to open and begin at my leisure?
If download from the App Store, then it puts it in your /Applications folder, however install starts without user required.
HAHAHA! A smartass reply but funny none the less.
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That settles it, I'm gonna sit back a bit longer and let this one play out.
I doubt what happened the OP is happening to a majority of people. I applied 10.9.3 to my iMac which has a Time Machine backup attached to the computer and all my backups are intact. If you are concerned about something like this might happen to you, simply eject and unplug the Time Machine backup hard drive before you download and install 10.9.3.
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Have you checked your hard drive for the possibility that the drive directory might be damaged and needs to be repaired with something like DiskWarrior. I had something like this happen to one of my external hard drives and it was due to the directory being damaged for some reason.
I take back what I said earlier. Mail in Mavericks is still a bit lethargic. Particularly when dealing with gmail messages. They don't delete immediately with the first press of the delete key (or mouse click on the delete button). Very weird and slow.
Other than that, Mavericks is cruising along fine on my iMac.
Mark
Other than that, Mavericks is cruising along fine on my iMac.
Mark
WOW, I just discovered that a TON of my archived email had VANISHED within Mavericks' Mail app. As mentioned earlier, I didn't install Mavericks until 10.9.3 was released. Mail had been lethargic since then. About an hour ago, I started poking around in some of my archived mailboxes (I've got several dozen of them) and, while I could see the headers in those mailboxes, all of the emails in them were BLANK. Completely blank, no To field, no subject field and no body. WTF?!
The first thing I tried to do was rebuild the mailboxes. MISTAKE. That made the entire mailbox disappear (all the ones that I tried to rebuild).
A little web research revealed that I needed to go into ~/Library/Mail/V2/MailData/ and delete all files that started with "Envelope Index" and then restart Mail. I did that and Mail acted as if I was using it for the first time and said it would import the mailboxes. In the process, it said there was about 35,000 emails to import. When it was finished, a bunch of my mailboxes were still missing but at least the archived ones that remained had mail in them that I could actually open (they didn't open as blank).
I turned to the backup I made on Friday before installing Mavericks. I copied over the backup's Mail folder (~/Library/) and replaced the one on my boot drive with the backup. I again deleted the "Envelope Index" files, rebooted the computer, and ran Mail again. This time during the import process Mail said it was importing about 75,000 emails! Much better! And, sure enough, when I ran Mail, all of my original archived mailboxes are back AND I can actually open and read the mail that's in them.
So, in a nutshell, installing Mavericks (and my subsequent attempts to rebuild my Mailboxes) resulted in about 40,000 emails getting lost! If not for my good backup practices, they would have been gone for good!
The web (particularly Apple's support forums) are FILLED with stories similar to mine. How on earth could this kind of crap happen?! I avoided Mavericks for MONTHS because of all of the reported problems with Mail. I figured by 10.9.3 Apple would have worked out the bugs. Boy, was I wrong.
I'm going to be keeping a close eye on how Mail works for the next couple of days. If I see the slightest bit of continued problems, I am going to dump Mavericks and do a restore from my SuperDuper backup of Mountain Lion.
And, BTW, the reimport of my many mailboxes seems to have fixed the lethargic performance of Mavericks Mail. At least there's that!
Mark
The first thing I tried to do was rebuild the mailboxes. MISTAKE. That made the entire mailbox disappear (all the ones that I tried to rebuild).
A little web research revealed that I needed to go into ~/Library/Mail/V2/MailData/ and delete all files that started with "Envelope Index" and then restart Mail. I did that and Mail acted as if I was using it for the first time and said it would import the mailboxes. In the process, it said there was about 35,000 emails to import. When it was finished, a bunch of my mailboxes were still missing but at least the archived ones that remained had mail in them that I could actually open (they didn't open as blank).
I turned to the backup I made on Friday before installing Mavericks. I copied over the backup's Mail folder (~/Library/) and replaced the one on my boot drive with the backup. I again deleted the "Envelope Index" files, rebooted the computer, and ran Mail again. This time during the import process Mail said it was importing about 75,000 emails! Much better! And, sure enough, when I ran Mail, all of my original archived mailboxes are back AND I can actually open and read the mail that's in them.
So, in a nutshell, installing Mavericks (and my subsequent attempts to rebuild my Mailboxes) resulted in about 40,000 emails getting lost! If not for my good backup practices, they would have been gone for good!
The web (particularly Apple's support forums) are FILLED with stories similar to mine. How on earth could this kind of crap happen?! I avoided Mavericks for MONTHS because of all of the reported problems with Mail. I figured by 10.9.3 Apple would have worked out the bugs. Boy, was I wrong.
I'm going to be keeping a close eye on how Mail works for the next couple of days. If I see the slightest bit of continued problems, I am going to dump Mavericks and do a restore from my SuperDuper backup of Mountain Lion.
And, BTW, the reimport of my many mailboxes seems to have fixed the lethargic performance of Mavericks Mail. At least there's that!
Mark
everything seems to work great so far with the update but I am getting this issue in chrome, after a page loads it will do this, a refresh fixes it. Seems to do it more with facebook.
