GOW: Ghost Of Sparta

[MadSocietyKing]

I am new to this emulator, as well as every PSP emulator. I have GOW: GoS on PPSSPP. I load the ISO and the screen is blank with a white rectangle in the upper right corner. Sound starts playing after a minute. It isn't crystal clear sound, but sound nonetheless. The screen is still blank though. I tried hitting keys to blind select through the menus but to no avail.