Will-ko

Worked the other day, updated my video card drivers (ATI HD 5850 - 11.10)
And now I get a black screen on login.

I've not been able to change any graphical options, so still running at minimum resolution.

Thanks, Will-ko

HD 5850
8GB DDR3 RAM
AMD BE Phenome II X4 3.4Ghz
Windows 7 64bit