I was doing firmware hack tests and was up to GH1__167.bin and stopped for awhile. Then today, I decided to try lowering the GOP and when I used Ptools 3.40, I changed the GOP to 12 and put in the firmware and everything loaded fine. Now, I want to try GOP 8 but, when I try and load the firmware by pushing the playback button, I get the "No Valid Picture To Play" message! My version display says my camera firmware is version 1.3... how do I get the camera firmware version to be 0.0? I tried checking both version compare and version increment +1 and then saving the firmware as GH1__170.bin but, it still won't load. I tried checking both version compare and version increment +1 and saving the firmware as GH1__133.bin, thinking I had to load it as 133.bin but, I still get the "No valid picture to play" message when I press the playback button! Yes, I do format using the camera between loading firmware files. What am I doing wrong? Help!