Ok, I went to boot my psp up this morning. It boots up the Sony computer entertainment logo comes up then it shows my background however the XMB doesn't load. if I boot with a UMD in the drive the game loads but apart from that I can't do anything. I'm running 3.03 OE-C,It could be something very simple so I'm sorry if it is. I've tried removing the memory stick and battery and plugging it into the wall and I've left it with the MS and battery out for a while but it still doesn't work.