I tried the Pref folder trick, and this problem still happened again. But i think i got it now. When it told me the errors were in the "...\AppData\Local\Temp\" folder it also told me of a error in the "..Windows\Minidump" file. thinking back this hadn't happened to me at all UNTIL i tried downloading a certain song, and midway thru, the blue error screen came up and all this started. after restarting and getting back on LimeWire, the song finished, but LimeWire popped up a box telling me this song might be a corrupted file. I deleted the song instantly, but it had already corrupted my files, i guess. So when i started checking over these error files that windows was telling me was causing the crashes, the"...Windows\Minidump" file showed that it had been created at 11:25 am the previous day....... the same time i got my first crash from the corrupted song i downloaded. I deleted the entire Minidump file, and everythings been smooth since.