its really worth it too. fantastic picture quality!!
also had problem with too big picture, the ArcadeVGA driver settings didnt help much.
luckely there was a service code for my scart TV.
if theres no service code for your tv. there might be some pots like, v-hold h-hold inside the tv itself, (not sure?) also a bit dangerous!!!
if the bezel is blocking the picture, you could remove it and get some smoked plexi
