Joy of joys, I'm able to import another Windows VM! Now it's down to determining
why one of the VMs I'm still having problems with is failing import, but that may be
something with the OVF or the exported disks, and not oVirt.
Thank you to Tomas and Arik and anyone else that helped and gave great input on this
issue! You are examples of the right kind of forum members: helpful, friendly, and
committed to making the product better one issue at a time!