Black Screen after Boot

[RankWinner]

Hi! I'm having some problems with my computer, after it boots it stays on a black screen for 1-2 mins then it boots up, i've read alot of stories about this but in all of those stories the PC wouldn't boot after te black screen, but mine does.

P.S. I think this has something to do with a Radeon HD 4850 update, because after I updated it's drivers my computer rebooted with like... 5% brightnes, and I could barley see enought to shut off the computer. So should I uninstall the driver and re-install it? Or is it just a very strange coinsidence?

Ty for help

[rkonit]

Download the latest digitally singned display device dirver and install it.
Remember: Avoid to Install ATI Catelyst

[iMav]

Remember: Avoid to Install ATI Catelyst

Any particular reason? I've been using Catalyst and haven't had a problem.

[RankWinner]

Any particular reason? I've been using Catalyst and haven't had a problem.

Same! I've been using it since I got my computer, but it only screwd up when I updated it to the latest version... and I like being able to change my fan speed =P

[rkonit]

ATI Catelyst insist customize settings on logon screen...and some time crashes due to compatiblity issue with gfx device.

Even I have ATI gfx and installed updated drivers, but getting few frames are dropped and screen goes blank when I run ATI Catelyst.