i thought lcd's didn't have image retention, was i wrong? i just bought a 46" samsung lcd and it's pretty obvious. whenever i exit a game on my ps3 and go to the main menu, a ghost image of the text remains in the black backround. it disappears as soon as another image is displayed, but it really obvious while it's there. it usually only shows up on really dark/black backrounds. is there anything i can do?