I have a Sapphire 6850 now on the 12.10 catalyst drivers but I am really thinking of ditching it for an Nvidia. I have updated the drivers twice since I got the card in April and both times it has been hell. The first time I downloaded the drivers, installed them and there was no change, my computer still said I was on the 12.3 drivers. Eventually I had to do a complete reinstall to get it to work. Two days ago I stupidly tried to update to the 12.10 drivers and at first I thought it went well, It installed no problem but when I got back into windows after reboot my USB drivers (including for my mouse) had been deleted! (and no i did NOT delete them when I ran driversweeper) So i tried restoring to before I installed the driver through windows and all my save images had been deleted too! So pissed off I had to again reinstall windows just to get the newest AMD drivers to work. On my Nvidia laptop I have never has to deal with crap like this, what am I doing wrong?
I had the same problem with nvidia cards. There's a reason why Tom's Hardware GPU recommendations are dominated by AMD Radeon GPUs. I think the driver issues are more a problem between keyboard and chair.
i've owned the following ati/amd cards: 8500, 9800 pro, x700, 6850 crossfire, and i have never had a driver issue. Sounds like a user issue, AMD's drivers dont delete other drivers. Are you downloading from AMD''s website and not a dodgy link? is your computer riddled with viruses? the fact that it worked after a clean install suggests a corrupt windows install or virus/malware.