TweakGuides.com - ATI Catalyst Tweak Guide
I'm lost between bookmarks, saving pages locally, adding links to my web site, and writing blog entries with links. :-X Having links in my blog entries makes it easy to find it online by using search option on Blogspot. Saving them locally makes them searchable by desktop search engines.
Anyway, here's a link that I often send to people, explaining how to completely remove ATI display (video) drivers and install newer ones. This can be a tricky operation so it's useful to have a manual close by.