Some LCD screens can show something that superficially resembles the burn-in on plasmas, but it doesn't have the same degree of permanence. Rarely does it show up on mainstream LCDs. Yours is actually the first that I've run across, though the possibility of it is well known. Sorry, I don't know the program that you've referenced. I should add that showing a full white or snowy screen, might eliminate the kind of persistence that you've noticed. See if tuning to a channel without any incoming signal for twenty minutes or so does the trick.