I’m getting a weird issue in Chrome when I mouse over a div. The scrollbar changes to some strange colors, but only on hover. Here’s a screenshot (left is normal, right is hover):

I’m not trying to style the scrollbars or anything, so I have no idea why this would be happening. It’s only happening on XP, too, which is really weird. I’m guessing it’s a Chrome bug, but maybe not. The only weird thing about this is that it’s in a drop down menu, but that shouldn’t mess it up like that.
EDIT: It only happens on this particular scrollbar, not on any other scrollbar.
EDIT 2: Restarting didn’t help.
EDIT 3: It happens on any computer with Chrome and XP. I’ll try to put a demo together but it’s kind of a semi-confidential internal thing at the moment. Here’s a demo: http://www.weblinxinc.com/bug/
EDIT 4: Removed CSS3 transitions, still a problem.
Looks like a known Chrome bug:
http://code.google.com/p/chromium/issues/detail?id=24524
http://code.google.com/p/chromium/issues/detail?id=20169
If I remove the background image on your page’s body tag and also the background on the ul, then the effect stops.