My operating system is Vista 64, EN8800GT, 6GB AMD 2 core and X-FI Xtreme music sound card.
Sound driver V 2-15-002 only one that did work and Video V 175.16 latest.
My system is always on SPDIF out and down mixing DTS-HD and Dolby True via P-DVD8 ultra.
Patch 1730u installed.

I have continued to suffer problems with Blu Ray, where Frame sync with Audio track is lost. IE sound gets out of line with picture over time. Aprox every 15 to 20 minutes .( DVD displays no such problems)
The latest Creative drivers appear to be worse in this regard.The one above is the only one I have found to work well most of the time.

Sync can be restored for a short time by indexing back a small amount.
I know this to be a software issue and 20th Century Fox titles cause me the most problems(AACS is a pig on their titles! often requiring a complete re-install of P-DVD 8 ULTRA. Corupting the software)
Has any body out their offer any suggestions?
Cheers Les