Hi,

About a week ago my 19" CRT started displaying an extremely distorted
picture. It intermittently goes into a state where the picture is
broken up into fuzzy lines (I can't describe it well) and the
slightest tap on the case could cause it to return to normal
(temporarily) or get worse.

I've checked for any broken video connections inside or outside, but
there are none. What's weird is that I ran the monitor with the
plastic case off and the problem disappears. But as soon as I put the
case back on the slightest movement or tap near it makes the picture
go crazy again.

Does anyone have any ideas as to what the problem could be? Could the
case be causing some sort of interference?

Thanks in advance for any comments.