If you have the LG GGC-H20L drive which came with an OEM copy of PowerDVD 7 Ultra, I suggest going to the software updates page at
http://www.cyberlink.com/multi/download/patches_112_en_US.html and manually downloading and installing the build 4407 update. I'm having no problems with this build, new BDs such as The Dark Knight play fine.
The latest 4617 update states it is for "retail and online purchase versions only", and I would say those words do
not apply to the version that comes with the LG drive. (Even if PowerDVD itself is trying to update to this version, although mine so far hasn't prompted me.)
This message was edited 2 times. Last update was at Dec 30. 2008 13:32
Regards,
Keith
As of October 2009: PDVD 7.3.5711 Ultra; LG GGC-H20L BD-HD combo; NVidia 9600GT; Samsung SM2333SW; Windows 7 Home Prem 64