I have had the card working with windows 7 before, as well with windows 8. I just went back to windows 7 and everything is fine.
I go to install Catalyst 14.4 drivers, and during the install, the screen goes black, comes back, then goes black again and never comes back.
I have given the install plenty of ti1me to complete, and the screen stays black (as if it is not getting a signal)
When I reboot, I can get all the ways to the windows loading screen, then the screen goes black agian (black as in no signal from the computer)
To get back into windows, I have to reboot into safe mode, pull up the device manager and hit the roll back driver button) This rolls it back to the default drivers that windows 7 uses after a install.
I have tried installing the latest drivers several times, trying diffrent things such as using the installer to remove previous driver versions, all with the same result.
I am running:
Windows 7 home premium
Radeon HD 5870