Another monitor problem

[harris@sdd.hp.com (John Harris)]

My GS' monitor is also having problems but it is not jumping or
flickering like the other monitor recently mentioned.  The image
on my monitor dips towards the center of the screen from both
sides.  Instead of the perimeter of the picture being rectangular, it 
looks like an hourglass.

Could this also be bad solder joints on the flyback transformer?  Are
there any books out there that document the common GS problems?  Any
help would be appreciated.

John