I've had nothing but issues with my HD5850 since I bought it but now it's pushed me over the edge this time.
Having reinstalled Windows a number of times the only thing I can blame the slew of issues on is the graphics drivers, every single time my computer decides to stop working a graphics crash occurs right before, what follows is:
1) Boot into Windows, various programs start to crash, followed by a BSoD.
2) Following this happening at least once, the computer will boot but all I'll have is a black screen and a cursor.
3) Next, boot into safe mode, all works fine, try and system restore but I get nowhere.
4) Insert Windows 7 disc, use system restore from there, works for a couple of weeks.
5) Repeat up to step 4, where the system restore fails.
6) chkdsk /R
7) Repeat step 4, works again but only for a few weeks at most.
8) Point of no return, impossible to get up and running again (and believe me, I've spent days trying to), at this point I reinstall.
I've even gone as far as actually reinstalling the OS rather than using an image (incase anything was corrupt). As far as I can tell my system is perfectly stable, I've gone back to stock settings and the problems still occur, my system stays well within recommended temperatures overclocked so not an issue at all at stock. I get various BSoDs but they always seem random (I.E. not indicating any hardware issues). I'm at the end of my tether, I don't have enough money to replace the card but I'm at the stage now where I'm about ready to give up on the PC which seems a shame considering the vast amount of money I've spent on it!
Having reinstalled Windows a number of times the only thing I can blame the slew of issues on is the graphics drivers, every single time my computer decides to stop working a graphics crash occurs right before, what follows is:
1) Boot into Windows, various programs start to crash, followed by a BSoD.
2) Following this happening at least once, the computer will boot but all I'll have is a black screen and a cursor.
3) Next, boot into safe mode, all works fine, try and system restore but I get nowhere.
4) Insert Windows 7 disc, use system restore from there, works for a couple of weeks.
5) Repeat up to step 4, where the system restore fails.
6) chkdsk /R
7) Repeat step 4, works again but only for a few weeks at most.
8) Point of no return, impossible to get up and running again (and believe me, I've spent days trying to), at this point I reinstall.
I've even gone as far as actually reinstalling the OS rather than using an image (incase anything was corrupt). As far as I can tell my system is perfectly stable, I've gone back to stock settings and the problems still occur, my system stays well within recommended temperatures overclocked so not an issue at all at stock. I get various BSoDs but they always seem random (I.E. not indicating any hardware issues). I'm at the end of my tether, I don't have enough money to replace the card but I'm at the stage now where I'm about ready to give up on the PC which seems a shame considering the vast amount of money I've spent on it!
If it is the card causing the trouble you could try selling the card on Ebay and switching to Nvidia to see if that fixes the problem, only thing I can think of really. I had plenty of driver problems in games with ATI but never stuff like you have so I feel your pain!
I'm not sure tbh but sounds annoying! Can you try the card in another PC to see if its the card alone causing the issues?
I have an old 7800GTX which I picked up from my last job, only problem is it was a faulty card which I cooked to working goodness, I don't think swapping a problem component for a previously-faulty component is a good move; I might grab myself a really crappy PCI card to see if it causes any issues, it's just frustrating because it can take months for the fault to develop and the 5850 can barely keep up with my monitor so I'd be limited on games.