Since then I did a full uninstall and reinstalled from the orininal disc. This now lets me play more blu-ray titles, but there are still a lot of titles it locks up on. Just last night I was trying to play "Star Trek The Original Season 1" on blu-ray, and all of those blu-ray disc will only play about the first 10 seconds and then lock up never reaching the main menu.
My audio and video cards have been checked for all of the current drivers, and I have uninstalled and reinstalled PowerDVD 7.3 ULTRA and tried it with the patches and without with the same results.