HI

I do see this from time to time on my W7 build.
Normally it is right, something has not released the driver of the Audio device.
Many drivers like Asio for all and other Asio drivers only allow one instance.
So if you say try to run BIAB with RB still open or any other software that uses that driver, it will fail.
Not all applications exit cleanly and release the driver.
Some times the only way out is to reboot the computer that clears it down.
I have not yet worked out which bit of audio software is causing this but it could be anything Audio that you have done today since boot, even things like Windows media player ,
Mind you I could have used quite a bit see my list in my Signature
You can try to narrow it down by rembering what you done before today since boot.
Have fun
Mike


BIAB2021 UltraPlus,AsusN55S1Tbssd, W10/64,Akai EIEpro
Yamaha CVP405,SquireStrat, CoolsoftVMidSynth
Novatation Impulse61 Ctr kbd, Cwalk blab Kontakt

http://mikesmusic.byethost16.com/