Yeah. It may be sound card driver conflict created by LotRO? At one point with my GFX disabled I had 6 drivers up listed in my hidden icons. Ouch.
To mitigate snap-pop, only headphones is enabled in Windows "Sound". GFX is disabled. I guess invisible to me GFX is being called either by LotRO or OS, and the idle driver gadget icons are popping up unannounced to me.
GFX is a software enhancement tool with an equalizer band filter. Invaluable during beta testing. Unf there's some kind of conflict when disabled. I'm running it now, but monitoring "Sound" and gadget icon tray for performances.
When you change account windows. After about a 3-5s delay there's this consistent gap in playback if your main account is set to persistent. It lasts about a quarter note or so, then playback resumes.
Just adding this sound driver check into our high maintenance routine before performances. Identified and working around it.
Spinning that hamster wheel as fast as we can!
http://i62.tinypic.com/11sypf4.jpg