Ok, this is a really strange problem. I got my 24" (4gb RAM) iMac on January 15th, and all had been working well until Tuesday of last week. All of a sudden, web pages will stutter upon opening them and sometimes hang for 20-30 seconds before opening. It may sound trivial but when the there we no problems at all and now I have this one, it's pretty signifigant. I go to a handful of sites a day, and at any time in the day I try to visit them, one or more will "stutter" - other times they won't. There is no pattern whatsoever, which makes it frustrating to troubleshoot. I use a Linksys wireless router, and at first I just figured it was just a problem with either that or my cable modem. I bypassed the router altogether (by unplugging it) and power cycled the modem but the problem still persisted. I called Time Warner to have them check my modem and they said everything looked good but reset it anyway. It came back up but was still doing the same thing. I told them I would work on it more myself and let them know if I wanted them to ship me a new modem but I wanted to make sure that was the problem. I did some speed tests on it at a couple online speed test sites and it was 1050 - 1073kbps each time, and this is on different nights. I have run some ping tests in the network utility but I get 0% packet loss on pretty much every site I ping, and once in a while I will get 2% packet loss - no big deal. I have a WinXP Dell laptop for work, so I reconnected the router and fired that up to test the internet speed on it. Sure enough, no problems whatsoever. In fact, there were times I would load up a page on my iMac and give it a "head start", then TYPE in the url on my Dell laptop, and it would come up almost instantly - and these weren't cached sites either. I have this problem in both Safari and Firefox and for the life of me can't figure it out. It's pretty obvious to me that I can isolate the problem on my Mac since the laptop has no internet issues whatsoever and the fact that this just randomly started happening. I haven't recently installed any updates or software that could of caused this. I'm pretty much a newcomer to Apple (even though I grew up on an Apple IIe and B/W macintosh) but I'm a 5 year PC tech with a law firm and work on Windows machines all day so I like to think I know something, heh. Any help would be much appreciated because I've had to resort to using the WinXP laptop because I can't handle the lack of net speed on the Mac It reminds me of the dark days of dial-up! So annoying!!! And what may be even more annoying is that it doesn't happen everytime I open a page - sometimes I can go to a site, it opens fine, but then I go to it again 1 minute later and it hangs. Also, a lot of time I can "stop" the problem if I stop the page from loading, then reload it. Then it will open up fine. Here's a screenshot of the problem - picture this screen for 20-30 seconds while a page opens up.