It does sound like a graphics card issue. If your e machine has onboard graphics try switching over to that. You will need to enable onboard graphics in the bios. Then connect your monitor to the vga (graphics) port on your motherboard.
Also you could try a friend's card in your system if you do not have onboard graphics. But with e machines one usually does, so...
Then ther is the possibility that your monitor is jacked, but I am betting on the card.
Justin C.
October 2004