FastSMRW crashes on Windows if a sound device is removed and re-added

[fastfinge]

I can replicate this with any USB headset:

1. start FastSMRW, and have it play output through the USB headset
2. Unplug the USB headset, and FASTSMRW will switch to laptop speakers, or some other sound device
3. Plug the same USB headset back in to the same port: FASTSMRW will be completely frozen, and it will block any other sounds from coming out of the headset

The same thing seems to happen with bluetooth audio devices. FastSMRW crashing is not a huge deal. However, the fact that it prevents all other sounds from coming out of the sound device is a bit nasty.