Dell 755 No display, turns on as soon as plugged in, will turn back on right after powered off
I have a Dell 755 tower (largest model) that was working great until yesterday. Yesterday when booted it displayed a long line of text that looked like it pertained to the video card, or possibly memory. I tried to power it down by holding down the power button, and it immediatly rebooted after powering down. Now it has no display with the monitor plugged into either of the dual monitor DVI plugs or the integrated VGA plug. I can only turn it off by holding down the power button and pulling the plug before it reboots again. Does anyone have any experience with similar problems? Where should I start, power switch, video card, mother board, BIOS?