This started last night. I was charging the system and playing it, like I've done many times. I was playing PicoDrive and suddenly the Wiz just shut down. Powered it back up and it did it again. Removed the cable (Wiz was almost fully charged) and it seems to be fine. But nope, did it again. So I let it charge over night, removed the cable, and played a few games. I thought the problem was gone; maybe the charging cable picked up a short or something. LO and behold I was just playing and it reset again. Now when I start it, sometimes it will hang on the first screen, other times it will hang on the Wiz loading screen. Right now I am in the process of reinstalling the firmware. In the mean time, has anyone else had this problem?