I've only seen the scrollbars in IE on a PC. A bit ironic actually. The forum is (mainly) for Mac people, but it uses a script that only PC users (as far as I know) can see...
I'm using Win2k and IE5.5, and they show up blue...
One thing to check on PC IE machines in whether IE is set up to ignore some styles or whatever... it may only ben an IE 5.5 and up thing though. Not sure.
Yeah, but when MS come up with something like that, it's fairly easy for others to jump in and add support for tags like "scrollbar-background" and the like.
In point of fact, whilst these tags mayhave been proprietary once (I don't know), I don't think they are now... I'm sure I've seen them listed as supported style attributes on w3schools' CSS reference guides.