Crash while swimming

WhiteFireDaemon

I've crashed twice now while swimming around. Here's the stuff for ya'll to look over. Hope it helps!

Dxdiag: http://pastebin.com/HHMCsfT5

Output log

Part 1 - http://pastebin.com/Jb1EVEqj

Part 2 - http://pastebin.com/UriSAm7h

Part 3 - http://pastebin.com/HSZg45rJ

Part 4 - http://pastebin.com/DsFsct1u