SONY PVM 2030 not displaying RGB image

[[email protected]]

So I've been using the RGB input through the 25pin CMPTR input for a
few months now. One day the image started to drop out. Sometimes half
the screen would show up, and then it would drop out completely. Oddly
enough, the s video still works perfectly. I noticed that turning up
the +5v brought back the image for a moment, but then it went out
again. I don't fancy buying a new monitor, I'm quite fond of this
beast.

Anyone have any ideas?

thank,

Jason.