I've a strange problem, when I access the login screen in Win8 the screen starts to power on/off incessantly, I can see the mouse for a sec and then it power off and on and off and on etc.
So I can't acces my win desktop and I can't access the charm bar to try to boot in safe mode. The only solution is to plug the monitor to the integrated VGA port of my MSI G41m-p33 combo using the intel graphics. I de-installed completely and properly the catalyst suite and reboot but it's still the same. That's weird because when I first plug the Radeon, Windows used it's own drivers and there was no problems. But even after removing the catalyst suite, I'm stuck with the same problem.
I precise that it works fine with xubuntu 13.04 using the propriatary drivers by AMD and It also works fine with OS X Mountain Lion 10.8.4 (yes hackintosh ! BYTW AMD, seriously, develop officials drivers for the Mac, there's a HUGE market!) with both LCD & CRT Monitors and even with Windows 7 Ultimate.
It's not a problem with my config (PSU 550 W, 4 GB RAM, drivers and softwares up-to-date, no Windows other issues).
My config worked fine with an old Nvidia GeForce 6600 GT 128 MB PCI-E.
So I guess that's the catalyst suite the guilty.
Any ideas ? Helps greatly appreciated