Khaki: I have attached a small test program. Please unzip it on your pc and run it. It should display the results on screen and in a file called "DirectCaptureInfo.txt". Please post that file (or send it to me). If you have more than 1 capture device, please tell me the name of the one you are having problems with.
This will help me identify what formats you USB mic can support.
p.s. if the test program won't run, please unzip it in the teamspeak 3 program directory and start it there.