Ok this one is really unusual. I use SoundBlaster Rage Tactics 3D as headset - it has it's own integrated sound card, connecting by usb, blah-blah-blah.

Problem is that once it disconnected (like, damaged cable or sorta), all the sounds in game disappear and won't get back even if I reconnect it (OS sounds are fine). It's not an issue though. Issue is - that once I've lost sound like that, the game will 100% crash once I try to jump off the island. Also client hangs when you try to close it.