Win7 + Live! = No 2ch audio!

I just installled windows 7
Everything worked fine , except my sound card ; Sound Blaster Live! 24 bit
In fact there are drivers in creative's site,that i downloaded and installed
This sound card is connected to my Sony amplifier through spdif

In WinXP everything worked like a charm ; all audio was coming out of SPDIF to my amplifier

BUT in Win7 even if i set the digital audio interface as the default, even if i disable the analog interface (speakers) when i play 2ch audio (mp3 , youtube etc) the audio doesn't come out of my SPDIF!!

I've set up AC3Filter so , lets say playing movies with dolby or dts work perfevtly fine!

Any ideas on how i can get 2chanel audio through SPDIF???

PS This issue is driving me CRAZY! lol

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