I wonder if it is the input. Did you try feeding different things to different inputs? Ive had service mode issues on crappy tvs (Toshibas mainly) where for some stupid reasons the eeproms reset themselves to "factory defaults". When that happens your set is pretty bad untill you go through the service mode with a fine tooth comb, or the worst case scenario is a new eeprom. This could be that, or your right and you messed up with your cabling, but a crooked picture is a weird issue to have. Glad to hear that you figured it out without too much trouble though:-)