No SPDIF (digital audio out) on Advanced dock with T60p/Vista

Hello,
Has anyone used the RCA jack on the back of the advanced dock to send digital audio to a home theater system? It's not working for me. Here are some of the particulars of my situation.
Windows Vista SP1 (but I had the same problem under XP; yesterday's upgrade to Vista was in hopes of solving this)
Windows Media Center setup wizard recognizes the presence of the SPDIF output
Windows audio setup recognizes the presence of the SPDIF output and claims it's working (screenshot below)
Coaxial digital audio cable is good (tested this by using a SqueezeBox2 to pass audio through it into the receiver)
Receiver is good and configured properly (tested this by using a SqueezeBox2 to drive the same input over coaxial SPDIF)
Audio driver is SoundMAX Integrated Digital HD Audio 6.10.1.5500, dated 7/24/2007
ThinkPad T60p BIOS is 2.22
No sound comes out no matter what I do
Here are a few screenshots.
http://spblat.googlepages.com/sound0.png
http://spblat.googlepages.com/sound1.png
http://spblat.googlepages.com/sound2.png
http://spblat.googlepages.com/sound3.png
There may be a clue in this last one. When I click "Test" my receiver "flaps" between displaying "Stereo" and "Dolby Digital" about twice per second, as though it's trying but failing to get a lock on the signal. Remember that the cable and receiver are tested good with another digital audio source.
Any suggestions? Thanks in advance, this is driving me nuts!
Message Edited by spblat on 07-10-2008 05:55 PM

Hey!
I reverted back to the old drivers and got my SPDIF Port working again.
Link to the old version is here:
http://forums.lenovo.com/lnv/board/message?board.id=T_Series_Thinkpads&message.id=2486&query.id=3945...
Make sure you install this before the drivers after you uninstall the old ones:
http://www-307.ibm.com/pc/support/site.wss/MIGR-65456.html
Please let me know if this works for you.
Cheers

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Message was edited by: AppleNewton

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