AH!!! It all makes sence when you look at it upside down and back to front.
Go to your settings ---> Ui calibrate and calibrate the poop out of ya LCD/PLASMA
Notice no YE oldie Vintage CRT's not having this problems...
You are either overscanning or underscanning and cant get a pic...just had the same problem when I updated to the new CVS. Had me scratching my head for a while.
Hope this helps anyone that has a similar fault.