many thanks for the suggestions:
I will try preference file delete and, just this morning render out a clip in FCP using the animation codec. However, I have read that folks on here have used P2 footage in the past with no problem . . .?
I did disable the preview (sorry, forgot to mention that) and not only turned open GL off, but moved it to the desktop (out of the plugin folder). However, the clip that did render had open GL on and seemed to render a lot faster with it on.