Hi Gary @gnorwalt ,
That is weird…I never heard that one before…
Try File > Defaults > Load Factory Settings.
If the problem persists, then you might need to update your drivers (especially the GPU).
If the problem goes away when using Factory Settings, it might be a 3rd party Addon that is misbehaving.
It could also be, that you accidentally changed some setting somewhere, but I wouldn’t know how or which setting that would be.