What's the explanation for a computer monitor that keeps blinking on and off... sometimes when blinking off, staying off for a prolonged amount of time? Who knows what someone did to this computer...

loose video cable or power cable? Weird screen saver settings set to like 1 min standby mode or something?

if it's not one of these, you have bigger problems.. might need a new video card or monitor.

I've tried a different monitor and same thing happens. So, new video card might be the answer? hmmm. I'm actually trying to type stuff in between blinks. ugggh so annoying.

Was it a different video and power cable too?