Following up, last night I unplugged/replugged both the 818.5 and C15. Then I tried importing another CD (I only import already-ripped files) via the Control:PC and it followed a fairly 'normal' current behavior pattern: at first it seems stable -- I actually completed one import -- but by the 2nd import it was back to 'refreshing' itself too frequently to complete another import.

And, while it sometimes just 'refreshes' when I'm not doing anything at all, it seems to happen a lot when it's doing a look-up operation (e.g., while typing in a tag on either side, instead of popping up the look-up list as I type, it hangs, no look-up, then refresh kicks in).

I didn't have time to try a 2nd machine last night, but will do that tonight.

Sooloos C15, 2x2TB TwinStores, Meridian 808.5, BSG Tech QOL, Allnic L-5000, FirstWatt SIT-1s, Zu Dominance; Modwrighted Oppo BDP95, Classe SSP-800, Sony VPL-VW50 Pearl.