/ubbthreads/images/graemlins/uhh.gif Your fuses shouldn't melt like that.....ever. /ubbthreads/images/graemlins/uhh.gif
What fan are you running? What Amp fuse have you been running? Either way, when you blow fuses, they should blow (melt the thin metal section in the middle and thats it. The fact that its melting the plastic means you've got bigger issue's (looks like a short across the bottom of the fuse block I'd guess).