I am posting in the proj sect because I believe this problem is the proj software causing the problem. 1. Sometimes on startup when my screen descends no picture appears just the proj graphics in the top RH corner ie: 720p etc. The only way I have to correct this is to switch off and start again. If I just switch the pict. to my plasma screen all appears to be ok with the vp50. 2. Last night after watching a HD film on sky+HD I switched back to a std def channel and the screen just went green. Having read on the AVS forum about a firmware upgrade on the Marantz VP12s4 I am wondering whether anybody reading this has had similar probs. Looking on the European Marantz website does not enlighten.