hi there im new to psp. i have currently upgraded my psp to version 3.03 oeb. i have GTA Vice City on ISO running from the memory card. my friends who i wanna play multiplayer with have the UMD of the game. When i search for hosts, the wifi light flashes but it wont find there devices. i have tried the UMD in my psp and i can play multiplayer. So it seems that it wont let me play multiplayer when using iso on mine. there versions are 2.71. can anyone help me.?