It is possible for the SVGA card in the system to not support SVGA mode (800 X 600 resolution). You can force the rescue program into VGA mode (640 X 480 - a mode which every graphics card can handle) by editing the er.bat file on the rescue disk either using the edit command in DOS or in a text editor on another computer. Change the line RESCUE /ve:32 to RESCUE /ve:31 as this will force the UI to VGA mode. Save changes. Reboot the computer with the disk.