REMOTE QUITS WORKING...????????

Question

Since I bought the 42" VW42L HDTV 10A ( October 2007) I have had a problem with the unit "FREZZING" up and not letting the remote control follow my instructions...??? I finally discovered that by turning the TV off and back on.. this corrects the problem.The picture is fine and I am happy with the operation of the unit except the described problem tends to make me worry about my investment ($900.00..Walmart Sale) in the long run.Is this problem going to get worse or not? Anybody else having this problem? I have not contacted VIZIO yet or made any complaints.