Thank you guys! Success!
As
gustabo and
scook suggested, I dis-abled Xray and sure enough, all was better ... sorry I ever doubted you!
However, I do use Xray alot, and so rather than disable it entirely, I also found that I could use the XRayExclude.ini file to dis-able only Waves plugins, by including these lines:
[EffectProps View]
;Exclude all Waves plugins, due to incompatibilities
XRayVendorExclude1=Waves
In fact, those lines were already in my XRayExclude.ini file, but I had moved that file out of the way because I never had Waves plugins before now.
Thanks again for all your help!
- Tom