still having problems with WB!

[muziq mayor]

I have logic 7, mac G4, m-audio midi controller and pro tools mbox2. I am trying to use my WB with EWQLS choir. I don't hear anything with WB. I tried everything that is listed in the product facts section and still don't hear anything. I downloaded all updates. when i load a single sample in SC, it plays fine. When i try to load the mults, i would see the midi signals going through but no sound. I don't see the DFD light flashing though. I followed every single thing in the tutorials and videos and i still Haven't figured this problem out. If someone knows what this problem might be, please let me know. thanks