Cyberlink problems

[rarredoa]

I purchased the sony BWU-100A drive. I've had a few problems. First movies with the AVC codec run choppy on my PC. Cyberlink hasn't been able to figure this out yet. I'm guessing my cpu isn't up to the task, but i would like confirmation from the "experts" at cyberlink. Second, I recently went on a 3 week vacation. Only to come back and realize that my PC can't play BD's! I ran the BD advisor from cyberlink, and now my software that came with the drive (PowerDVD 6.6 BD edition) is not compatible. Cyberlink and sony recommend updating the software, which cyberlink provides free of charge, to PowerDVD 7.3. Problem with this is that i get an error message "PowerDVD 5 needs to be installed, setup will now exit"

This has been very frustrating, since I've invested a grip of money in making my PC blu-ray compatible, and i loved it when it worked. Does anyone out there have any suggestions?... Thanks!

This is my PC setup

AMD X2 3800 processor
2 ATI x1600pro 512 mb video cards in crossfire mode
2gb ram
sony bwu-100A bluray drive
cyberlink 6.6 PowerDVD software (included with blu-ray drive)
Creative X-FI Fatality soundcard
Samsung 1080P, DLP