I just recently got my gp2x. I put two of the 4 rechargable batteries in. They lasted around 30mins. I figured ok, they lost power cause shipping was so long and before that they were in a stockroom forever. I put the next two in and got the same amount of time. Then my bro gave me some non rechargables and they lasted even shorter. I recharged the batteries I got fully. Now I am getting around 10 mins!!! My gp2x really cannot hold a charge. Has anyone experianced this? I also seems when the batteries get real low I select settings, video, whatver and it just freezes. Is that typical of the batteries running out? Also I cannot get into USB under settings. I press 'B' but I doesnt go into usb mode. Related to power problems maybe?