I'm running 2021 Audiophile with the latest updates on the same ThinkPad I've been using for several years. Plenty of memory, plenty of CPU. Everything was working when I shut it down last night. Other music apps work just fine this morning. I've checked the usual things, it's using WAS driver, mixer volume in BIAB, Windows Sound Panel and Volume Mixers all look OK.

When I first booted up BIAB worked visually (cursor went from measure to measure) but no sound. I even did a Reset to Factory Settings, now the cursor won't move and no sound. It's Wednesday so I don't thing they've snuck and overnight W10 update on me.

I'm a (very) long-time user. Maybe I need another cup of coffee. What simple and obvious thing am missing?