Wall-e: Jerky PowerDVD playback on Vista SP1 64 bit but XP SP3 is fine

[blueheaven]

Hi guys,

I thought to come here and tell you about my blue-ray playback problems.

I am a PC user and I watch blue-ray movies via PowerDVD 7.3 Ultra. I just bought Wall-e on blue-ray and found it playing very oddly on different OS's.

For some reason the playback is jerking (looks like frames are freezing/skipping) when using PowerDVD on Vista 64 bit SP1. However, on XP Pro 32 bit SP3 the playback is normal without any jerking (although the usual "juddering" in panning shots is always there but that is not the problem).

Later, I have found this jerking also with other BD movies like "The forbidden kingdom" and "Fantastic4 Rise of the Silver Surfer" (the older Fantastic4 worked normally before on my Vista) and it looks like something has messed up my playback on Vista 64 bit SP1. I could almost bet that this relates to copy protections and a buggy software patch or driver which don't work together, again.

I have patched my PowerDVD to the latest version 7.3.4617.0 and I am using the latest drivers for my Geforce 8800 GTX (180.48) on both OS's (I have both OS's on the same computer). And it was after this patching and driver update when the jerking showed up on Vista.

What do you think? Could it be the PowerDVD or graphics card driver? I've checked Task Manager and I don't see any resource hogs. And I want to stress that this is the first time I see a blue-ray problem called "Jerking" on my Vista.

At the moment I am in contact with Cyberlink support waiting for their answer but I would be glad to find a solution also from here, as these cases tend to be difficult sometimes.

Thanks