I'm having problems with rawdump and .Net Framework 2

Near the end of the dumping, I always have an error that basicaly says .Net Framework have a problem, and then the dump stops.

I have this problem with both Wii and GC games. I unscrambled a dumped GC game and it's working though...

Did anyone of you have this problem ?

 

I do have an LG 8164b so yeah, it's the good drive, and the dump I did works...