The screen on my 22 MYP has started to freeze up fairly consistently after I've left the car sitting for an hour or two. It happens nearly every time and takes about 30-45 seconds to unfreeze. It's problematic when I pull out of the garage and the backup camera freezes, leaving me with no good visibility when backing out. The Homelink doesn't signal the garage door shut either (and I can't manually signal it since the screen is frozen). I've reset it three or four times now with no appreciable difference in behavior. Was working fine until about a week or so ago. Doesn't line up with any software upgrades that I can tell. Is there anything I should check?