No sound aside Adobe Audition

Hi dear forum,

since I installed Adobe Audition 3.0.1 on my new computer (Win 7 Professional, 64 bit, 8GB RAM, loads of HDD and SSD for booting) I noticed that sound is only audible in Audition, although I used to hear sound via PowereDVD and Windows Media Player perfectly well in the past prior installing AA. Installing of AA seemed to disturb something.

Of course I have set up AA that the ASIO drivers are released when not used.

My soundcard is

Terratec DMX 6Fire USB with ASIO driver 1.11.00

Please help me on that.

Thanks and best regards
Guido

After re-install of OS it seems to run like designed now - although I'll keep an eye on that.

Best regards
Guido