Hello Edi.
I did as at everytimes I update Catalyst: download & install. I effectively don't bother me with uninstalling old drivers (very tedious some time), and even less with registry base cleaning (more tedious ...). Until now, I had no problems, with Dom3 or anything else. I believe (maybe I'm to naive
) that now, the drivers installers handle very well theirs updates. No more needs to unistall or things like that. BUT, still, computing is a very complex & delicate thing ... So.
Since everything seems to work fine for some of you, I will try to uninstall old drivers, then install latest catalyst.
The test is worth.
A detail: you & Endoperez have a model upper mine (4850 & 4870, I have a 4800 1Go RAM), so MAYBE there is a difference in behaviour.
I'll tell you if it resolves my strange problem.