Wes, v3 sounds better and better...i will post a concise list and screen shots of zoomplayer and what AC3 is doing or not!! under xlobby. I have spent hours and hours trying to solve this problem.
I am hoping when i build my new media pc in next few months for Bluray and yes HD DVD i will avoid any problems i am having with current machine.
edit. here you go...
ASUS P4C800-E Deluxe motherboard
Digital Audio Labs Card Deluxe sound card
P4 3.2 running on XP
My Zoomplayer settings that do proper passthrough of sound...
AC3 to Reclock = perfect passthrough of sound decoded by Arcam for Dolby Digital and DTS