System Manufacturer/Model Number hp p6532f desktop and hp WA966-UA#ABC notebookpc OS both 32 and 64 CPU triple core and daul core Memory 4 gig ddr3 and 3 gig ddr2 Graphics Card ati Sound Card realteck Monitor(s) Displays 23" and 19" lcd
My guess is you are missing the ac3 audio codec.
The easiest way to get it is just to install a codec pack.
I use CCCP but there's plenty of them out there to choose from (though I strongly advise against using klite, as it has known problems with both vista and win 7) CCCP - Combined Community Codec Pack
System Manufacturer/Model Number Insane hobo technologies. ;-) OS Windows 7 x64 CPU Intel i7 2600k Motherboard Asrock z68 extreme 4 gen 3 Memory G.skill Ripjaw 16gigs @ 1866 Graphics Card Nvidia gtx580 (evga) Sound Card Integrated HD audio + hdmi Monitor(s) Displays 24" ASUS widescreen + 42" insignia Screen Resolution 1080p (1920x1080)
Keyboard Microsoft wireless 3000 (v2) Mouse MS - wireless 5000 (bluetrack) PSU 1 kilowatt SLI/Crossfire rated Silverstone modular Case NZXT Phantom + additional 220 fan Cooling Zalmann Hard Drives 128 Samsung 830
256 Samsung 840
3 x 1tb storage drive (various)
1 western digital 1tb (eSATA)
1 Seagate 1tb (eSATA) Internet Speed depends on if you ask me or my provider. Other Info The above information is provided as is, and the author assumes no responsibility for issues it may cause with your sanity or fanboyism.