I've not left a static image on the TV for longer than 10 minutes since it arrived this morning, but when I turned my TV on from standby, to my horror, I noticed a field of "No Signal" logo's all over the screen before the screen went darker and made them harder to see. The "No Signal" icon on my LG has hardly been on screen, yet I can see lots of ghost ones when resuming from standby ... already?!? They "appear" to have gone away after I left a DVD running (Spider-Man 2) ... couldn't see them when the screen went black, whereas before I could notice them when I went close to the screen. Is this image retention which goes away quickly or is this a sign of burn in???