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Same problem here.
I'm using Mac Mini CD 1.66 with 1.25 GB ram
It works perfect in Tiger (graphics), Dock, Dashboard, Genie minimize....
Mess up and extremely jaggy here in Leopard.
I hope Apple will release a update soon.
 
I've been reading all the posts I can find about the graphics performance issue, and it seems only to affect MacBooks and Mac minis. It's not a horrible problem, just an obvious and annoying one.

That's right. My Mini is slightly sluggish with stacks and expose and I'm running 2GB Ram. Was at Apple store yesterday and the Mini they had with Leopard was doing the same ant it had 1 GB Ram C2D.

Also, I tried running video and Photoshop file at the same time and the sluggish effect stopped. Expose and stacks were smooth with more video demand...??? i am not an expert but look that there is something wrong with drivers maybe...
 
hey, you guys were the ones pushing apple to release it right away, what do you expect? if it weren't for forums like this, and people like you :) apple would probably have waited until the end of the year to release it. hey, i am not installing it until december. i don't want to lose any of my productivity with bugs and problems. tiger is fine. sure, leopard has some good stuff in it, but it's really not necessary. it's not like im sitting here wishing i could be using stacks right now, or, oh man, maybe i want a transparent menubar... not necessary. as soon as its nice and smooth and bug free, probably 10.5.2 at least, i will install...
LOL Leopard was already delayed pal and it has nothing to do with this forum or any other forum. That's kind of foolish to think it's "us guys" that pushed for the release. Besides, my guess is this was done just in time for the beginning of the holiday season. Apple gets too busy to deal with a new OS around Christmas (my guess).

Apple is known to attract early adopters. You should know this and if you do not then you do now. Think about it. In my own experience being an early adopter of an OS that MS kicked out has been painful in comparison to being an early adopter of an OS from Apple. I installed Tiger the second it was available. Things went strikingly well for me. I've elected to wait until 10.5.1 before I jump on Leopard as there has yet to be a feature that made me crave a new OS. So you're another one who will jump at the next release or the one thereafter, big deal. Let these guys be the early adopters, voice their opinions, concerns, issues for all to see, and thank them for being beta testers for people like us not willing to brave a new OS release day. ;)


If this foolish statement was true we would have new mac pros and macbook pros right now.
Ok yeah that too. ;)
 
My experience, thus far...

So, I've had Leopard installed since last night. My first installation was just an upgrade; and when done, fired up and noticed some pretty HORRID animation relating to anything on the dock, including the genie effects, and oddly enough, the stacks (both the fan and gird view) seem to animate pretty smoothly, despite what I've heard about what others have said. Needless to say, I was severely dissapointed since I have the newest addition to the MBP line. Sporting the C2D, 2 gigs of ram, and a GeForce 8600gt, I would have imagined that this OS update would run far better than Tiger (which ran very well, by the way.) So I read up on the forums, and found out that many others were having the same problem with the upgrade, however I noticed many say that after an Erase and Install, it ran perfectly fine. So I decided to go ahead and give that a try. After backing up all my stuff, double checking, and all that prep stuff, I proceeded to install Leopard with the Erase and Install option. After installation was complete, I was still experiencing the sluggish animations... What is funny however, is that quick look, cover flow, the Time Machine and various other animations not related to the dock were very, very smooth; with one exception. Playing .mov's in coverflow/quicklook wasn't playing back particularly smooth either. And since I'm on the topic of Quicktime, I fired up both a 720p, and 1080p quicktime movie trailer from the apple site. The 720p one played back well, but the 1080p one had some noticable hitches.

Aside from the problems with Leopard, there are some things I really like about it too. Quick Look is great, Time Machine works well so far (obviously I haven't had much time to let it backup yet though), I like coverflow for some folders, the sidebar is much better, as well as networking, which finds other networked computers very easilly, and stacks are pretty cool too.

I could go on and on but that list will be too long. So there is a mix of good and bad, and I REALLY hope that Apple fixes this problem, I could be wrong but I think it might be related to the type of video cards; hopefully drivers will be updated to fix this.
 
Have you rebooted? Mine was superslow for a few hours (even AFTER spotlight was done indexing) then after a reboot and time it is amazing snappy.

That is my problem. After I reboot I'm great. Snappy and fast. I let it sleep for a couple of hours and something happens and it gets jerky. Not sure it is Leopard or a 3rd Party app I installed yet.
 
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