screen resolution set too high, now i get a black screen
I'm useing Ubuntu 9.04 on a P43T-A2 mobo. With an Intel core 2 quad q6700 cpu, ATI Rage 128 pro video card, and 8gb Corsair XMS2 ddr2 of ram.
Yesterday I recieved my new LG Flatron W195TQ DVI LCD monitor, from Tiger Direct. After I hooked everything up, I went into System/Preferences/Screen resolution and entered a high resolution. When I rebooted I got a black screen with a colourful line at the top.
Is there any way to reverse this? I can't get into the OS at all.