Hi bmove,
I'm very sorry to hear that has happened, and I apologize for any inconvenience this may have caused you. In order for me to help you most accurately, please provide the complete model code for this device. Also, any chance you could check to make sure that you're on the most recent firmware?
HD Tech
Hello, I have a Smart tv, after some updates the web browser doesn't show anymore the miniatures of frequent or favorites sites. Only appear the gray blocks with no preview even after visiting the sites many times. thanks in advance!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic