i plugged my conference speakerphone into a rear USB port like every morning, heard the Windows connect sound, and then the disconnect sound right after. then this popped up:

USB Audio Device Properties
Device status:
This device cannot start. (Code 10)
{Operation Failed}
The requested operation was unsuccessful.
its been like that since the Realtek AC97 a3.58 (Windows NT) update, the conference speakerphone works fine on my laptop, so i dont think its broken. on this PC it either doesnt appear at all in Sound settings or shows up briefly and vanishes... im starting to suspect the update messed up USB or audio drivers. where should i look? thx in advance!!

