I attempted (got a BSoD during the middle of it) to install the newest Catalyst drivers since I was getting some BSoD problems frequently from my card (ATI Radeon HD4870), and now I am encountering some issues - mainly my mouse doesn't work anymore. I have restarted, tried multiple mice, multiple USB slots, and restored to a backup point that I had from last night (tried installing the drivers this morning, so it was obviously a good backup point). No dice on any of them - and now it recognizes new hardware of my mouse, and is trying to search for the drivers, but I can't even select 'Locate and install driver software' to get the mouse drivers installed. The screen has popped up, but when I hit enter nothing happens. It also seems that my computer no longer recognizes any of the ethernet adapters I have... I have no idea of what I can do at this point short of a reformat, so any help at all would be incredibly greatly appreciated. Thanks.