I've been trying to download the patch from mediafire and the official site. Each time it gets to 19.5 Megs downloaded and finishes (through mediafire) or sits at 19.5Mb, still claiming to be downloading, but not actually getting more data (not mediafire). I can then open the fire and extract the patch, but it gets to basic_physic.codelib and gives me a corrupt files error.

This has happened several times, any ideas?