With labview 8.6 and All previous versions of labview I have the same issue with this new computer. Using supplied example aquire sound input or my own app as soon your press run the VI hangs untill I use end task. It will play sound however. Issue is with sound input only. The new pc has integrated soundmax HD sound ans windows xp operating system. I have never had a problem aquiring sound input untill this recent pc change.
I did take notice that the cpu is not being used when it hangs up. Very odd problem. If I change the device from 0 to 1 it will run but with no sound of course.