Actually, I've had this happen in 2.0 as well.

I just upgraded because of the Photo Friday thing, but after I upgraded Firefox wouldn't start at all. Had to uninstall and reinstall and reboot -- twice. Grr.

Okay, upgrading fixed the Photo Friday thread, even though doing it was annoying. Guess it's less annoying than having to open IE to view one lousy thread, though.

Carry on.

That looks like you're out of memory. Sometimes when viewing large numbers of images (or video), I get image 'tearing' like that. There's not enough RAM to render the page, so it gets stuck. That's what it looks like, at least.

For whatever reason, since we switched servers, I get a different kind of tearing when scrolling down any long mecha page. The center and left are synchronized with each other, but there's a lag in matching the gradient in the background with the right sidebar. Actually, I just tried it again, scrolling with my mousewheel, and it looks like the middle is just having problems keeping up with either sidebar. Weird.

Yeah, that scroll thing is irritating, but it's not the server, it's a firefox problem. It started happening for me after I upgraded from 1.5, I think, and I tried all sorts of different things in the css to try to change that behavior, and then found a lot of references to this scroll "mis-synch" problem around the web. It's probably what's causing ico's thing, too. The discussion I've read has mentioned problems on pages with lots of images... I don't know.

It's been a while, but it's also happened on threads with lots and lots of comments. So it seems to be about how much content the thread has, and not about what that content is. Know what I mean?

That's weird... I'm using FF 2.0, but I only upgraded this week, and I never had problems with the old Firefoxes, either. My machine always has lots of RAM since I play video games, though. I suspect Eidetaker's right about it being a memory issue (that affects Firefox).

Does it help if you switch off smooth scrolling?
See : Preferences | Advanced | General tab | "Use smooth scrolling

I didn't have smooth scrolling on... But I've removed the background (color gradation) so the middle column shouldn't show the out-of-sync problem with scrolling on regular pages anyway... and if it happens to resolve the text/image stutter, that would be great - but since I don't see that, it's hard for me to tell if it makes any difference.