   XACT soundbank play failed
  HI:I fallen across a problem that xact soundbank failed. My PC operation is win7.The operation process is:1. I run my demo which is using xact engine to play some music.2. During running the demo, i pull out my earplug, after some seconds, insert earplug.3. then, I press Space key to play another music, the error is happend. the error message is n/a.the i try to use the xact3Engine api of GetRenderCount, the error message is invalid device.4. i close my demo. and pull out my earplug. then start to run the same demo, there is no error message. After, insert earplug, but i can't listen any vocie. why?I found if i pull out my earplug, and then insert earplug. that xactengine can't connect audio device. It's like graphic device is lost, it need restore. I want to the xact is has some api to do this? or, need manual deal with. or some other good methods.thanks!   