Windows Live Messenger sound notification problem in AKU3.5

[lightsail]

Hi, I am trying to figure out why the live messenger notification does not work. I tried all three types (Silent, Vibrate and use system setting) from the Option setting. I also have the IM event set correctly in the "sound and notification" control panel seeting. But for whatever reason, just no audible notification when I get a new instant messenge. By the way I used Windows Live OEM module posted in the OEM kitchen. Does anyone else has this problem? Thanks.