[tomaversa]

theres a chance thats its not ur psp at all, just ur usb cable or usb port...try using a different usb cable and/or a different comp to see if either of them are the prob.

i had a bad usb port on my comp and whenever i tried to move stuff to my psp it wouldnt let me..

also check if u have a fake memstick...to do this, turn on ur psp then press triangle when ur over the memory stick icon...click on infomation

if it say magicgate supported its real
if it says magicgate unknown its fake