Sounds like the power supply in the monitor is becoming unstable. If you can hear a click/ping/crackle when it does it that would confirm it. Plenty of free CRTs on Yahoo Freecycle, TFT's are now <$80 in many places, but be warned, they are now much more unreliable than CRT's in my opinion.


Get one with 3 years warranty if you can and check the small print. I recently had xerox (a "reputable" company!) monitor fail after 14 months, it turned out that the 3 years warranty only covered the parts, not shipping back to Xerox, or labour. So it was worthless.

AP