New
#1
Screen blackout every 3-4 minutes
I just upgraded my Gateway DX4300-03 computer from Windows Vista 64-bit to Windows 7 Home Premium, and ever since, my monitor has been periodically switching off for 1-2 seconds as if it lost the connection, then refreshes. When the screen comes back, the mouse is centered on the screen. This issue did not happen with Vista.
I have tried updating my video drivers(to ATI's version 10.1), and installed all the windows updates, and still the same issue. I've also uninstalled the ATI drivers to force windows drivers for the card, and I get the same thing (although the off time seems to be shorter). It seems to happen no matter what the computer is doing (playing a game, browsing folders, completely idle).
Any suggestions?
The system contains an AMD Phenom X4 9750 processor, an ATI Radeon HD 4650 video card, 8GB DDR, 1TB Hard Drive. Full specs are here: http://www.gateway.com/systems/product/529668282.php
Also to note, I know the power supply is pretty small (300W), but again, it didn't have an issue in Vista. I was thinking about upgrading it to a 500W or bigger, but I'm not sure if it will help yet.
Thanks in advance for any suggestions!