Just got an arcade monitor, think it's a Electrohome G07?  Anyway, the monitor works just the picture is squished down to about 3 inches wide down the middle of the screen and I can't adjust it.  The monitor is mounted Vertically and its already been recapped by the previous owner.  So, from reading a lot of  message boards, it sounds like a Vertical Deflection transistor problem, but I'm just guessing?  Does this sound correct and if so, is this a hard or expensive problem to fix?
Thanks!