Hello! Recently I installed an AMD Radeon HD 7850 1024MB on my computer (AMD has well, Dual Core) which has been giving my problems, first of all I used to have a Nvidia on that computer and most things run without problems, so! I wanted a better card (The Nvidia was a cheap on so I could play some basic games without problems, like let's say Left 4 dead) and then I had enough I moved in to this new card.
First of all I unistalled the drivers of the previous card, installed the new card and when I installed the new one proceed to use the CD/DVD that came with it to install what I suppose was the new drivers, the new drivers.
I got from that the following:
AMD Catalyst Install Manager
Microsoft Visual C++ 2005 Redistributale
Microsft Visual C++ 2012 Redistributable (x86)
I assumed that those were the drivers of the card, I don't actually know if I got them right (Like I say, I'm a novice to this) and since then I been having the following problems:
Flashing black screens that happen randomly and last 2 or 3 seconds, same has this guy: http://forums.amd.com/game/messageview.cfm?catid=440&threadid=171277&enterthread=y
And blurry text and low graphics when playing certain videos which I didn't had before with my previous video card.