output of my wavelab 7 program is totaly distorted

My wavelab seven program is not working the playback I am getting is all distorted
other audio programs work fine on my computer, is there some setting that I should check

What settings do you have in “Options > Audio Streaming settings” ?

I have played with buffer size and increasing it make it function but I have to get it to 16384 before it seems to
stabilize, where should setting be normally