User blog:Vaince321/Save files for Computers and PSP

Ok, the title says it all guys but I keep wondering how you guys even make the save files work in both PSP and Computers. I've literally got no idea what to do and this already confuses me more than enough. I remember there's one option in the ppsspp but I can't remember which one is it. Can anyone tell me about this crap??? Everytime I try to use my save file, It just go back into the Main Menu without warning...