GPU Acceleration - Win7 64

[Scott.in.au]

I have just upgraded my system to Windows 7 64-bit, new mobo, etc., but same graphics: nVidia 9600GT.
I have the latest drivers: 8.17.11.9621 (11/01/2010)
Here's the process log trying to decode a blu-ray disc...
---
18:53:32: You are going to try "Blu-ray to Blu-ray" option.
18:53:32: Source( 00000.m2ts )
18:53:37: Analyzing started
18:53:37: Analyzing completed successfully
18:53:37: Video reencode bitrate (6611 kbps)
18:53:37: Copy process started
18:53:37: CUDA GPU Acceleration start ...
18:53:44: Task_1 failed! Error=1000(504.00 0 filter(type2:id3), info = 570-5 7 701 0 706 8 cuda: 100,
)
18:53:45: Process failed!
---

Has anyone else seen this? Can anyone decode the error? I've decoded the disc before (prior to system upgrade) without problems...

Thanks for any help!

[Blazkowicz]

1000 DVD_Error_BD_MainMovie_Common

You may try to disable GPU acceleration and if it isn't working then, try without compression or another compression setting (e. g. BD9).

[Scott.in.au]

All goes well without GPU ticked, and on a i7-950 I wonder if the nVidia GPU would be quicker anyway. Uncompressed copy (15GB) took about 26 minutes, a BD9 compression has just taken 1h30
Thanks for the suggestions