I have a Dell Dimension C521 that was given to me from my mother since my sister is off at college and uses her laptop. It has an upgraded (from Dell) graphics card (ATI Radeon X1300PRO). I used the DVI to VGA adapter that Dell sent with it so it can be hooked up to multiple monitors and it works fine as long as I am doing stuff with it. The issue is that when I let it sit for 20-30 minutes either on the screen or swapped inputs (such as playing xbox or watching tv) the screen will go blank and I get a message from the TV that states "no RGB connected, tv will shut down" I try wiggling the mouse and pushing the spacebar but nothing happens and I have to hard reset the computer. I am looking into getting an upgraded graphics card for it and using it as an HTPC since it's a slim tower and that's exactly what I wanted. Any suggestions? I have already checked that the sleep settings are turned off for both the computer and monitor.
