Okay, about a week ago I spilt juice on my PSP but wiped it off, and later that day I noticed the D-pad keys were sticking, so I applied some antibacterial spray to them (Sprayed it on and wiped it off) and all was fine. Yesterday I noticed the keys were sticking again so I tried again with a different brand multi-purpose cleaner and it worked again, and I went to bed. At about 11pm I began to play my PSP in bed and as the gameboot loaded I noticed I had a big dark blotch only visible on light screens, so I left it leaned upside down at an angle overnight to try and get it to soak away, and some of it seemed to but I still have some dark patches. I've read about this and I've been recommended to not open the PSP, and wouldn't want to return it to the shop as it is a 3000 on 5.03. Does anyone know of a way to fix this other than buying a new screen?