Bluetooth audio receiver (Belkin) causes macbook built-in audio crash

Hello. Sometime I use an Bluetooth audio receiver (some Belkin one) to transmit audio to the sound system of my house. When the macbook dont found that device, then a pop-up come sayin: "We didn't find your bluethoot audio" and there's only one option to choose and that is "Stop using bluetooth audio receiver". Then, the built-in audio of the macbook disappears since I dont know. I cant hear anything, but when you on the computer, the first sound comes out so, its not a hardware problem.... Someone can help me?
Thank you all.

I have to day more things about this issue. The problems started after I installed a NATIVE INSTRUMENTS plug-in called DRIVER. I haver searched every trace of it and erased from my HD.
Another thing regarding the issue is that when I try to open the midi configuration of the mac it suddenly crashes.
Any ideas before I take my laptop to the apple store?
THANKS. Have a wonderful 2012!!

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Bluetooth audio receiver (Belkin) causes macbook built-in audio crash

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