Not sure when this was fixed, but thank you!

Multi-tasking always gets the best of me, and regardless of training myself I forget that I have X3 minimized and power off my audio interface... this used to give Win7 an unrecoverable seizure.
 
But... I just did it again and X3d intercepted it, asked if I wanted to use another device, and let me close X3 without issues. Thank you!