I got a problem. I just downgraded from 2.60 to 1.50 yesterday and now when i try to go to the the MEM STICK UNDER GAME XMB on my PSP and it wont respond. Also since im at 1.50, i think ok ill update and then donwngrade, but when i try to update it freezes at the gameboot. PLEASE help or my bro is goin to kill me. And when I go to the MEM STICK under MUSIC XMB it freezes.