creeping monitor

[David B. Lewis]

The image on my 3/50 mono monitor has moved upward, hiding the top line of
text and leaving a black band of empty space at the bottom of the screen.

It's not under a service contract; does anybody know how to fix this
vertical hold problem?

Thanks. Please respond via email; I'll summarize if there's enough
interest.  (Sorry if this has come up before; I had my net access off for
a while.)

PS: anybody know of a good anti-glare matte for the 19" monitor? Thanks
again.