I use mce too (or mceafo) 
Norway
I had never any problems when I had a 16:9 32" philips CRT Television...I'm using Spinsafe Revolve, because the overall look is very nice. However, it's a shame that MediaPortal still has issues with UI Calibration, meaning I can't really get the real 16:9 look on my 16:9 CRT since it's really 4:3 1024x769 that is stretched out by the televison. I use a custom font called Rollout (that is condensed) to make it look a bit better though. But the cover view isn't working due to a bug in the skinengine that nobody but me cares about.
Emph
I had never any problems when I had a 16:9 32" philips CRT Television...
Are you sure you have checked all your settings? Correct cable? Correct drivers for gfx card? Settings in gfx card?
etc... etc.. Tryed the crop settings in mediaportal, or is just in the menues there is an issue?
That looks odd, and does not seem like a mediaportal issue, most likely your gfx card.
Have you tryed any other drivers? Perhaps try the omegadrivers.