Can anyone help me with this, I may be missing something simple. I have updated my PSP to this firmware with no issues, however I have two qustions: 1) I cant play CSO files, ISO works fine, CSO however dosn't even show up in the game menu. Is there some way to make this work? 2) I cant restore my PSP to 1.5! When I put the specified EBOOT file in the specified location and tell it to kick off, the scren goes blank and the PSP turns off. When turned back on it is still on 3.03 OE-B. Obviously if we can fix problem 1 then this wont be an issue Thanks.