I have 6.20 PRO-C installed on my PSP. I bought recently Dreamy theater and Dreamy theater 2nd for PS3 which requires simple plugin runned on PSP to be actually able to play the game. When I installed and runned it it just gave "error 80010087 game could not be started". I quickly googled it and there wasn't much to be done. I though it may be becouse I had signed with my default PSN account instead of one which I used to buy those games. So I tried switching account, reset system, formatted card, turned fake OFW on/off, installed with PS3 and directly via wifi, installed fresh 6.20 OFW and rehack it. Everything else including my PSN games works absolutely fine and Dreamy theater games have been around before 6.20. I tried if it actually was becouse I was running older OFW and installed 6.60 and it actually worked. Thing is that now I don't have perma and some plugins won't work. Is there actually way to get through this error any other way than keeping worse newer non-perma firmware?