Yet more questions

Yesterday I received my brandnew Syrenphone Whisper BT headphone which I paired with my laptop.
Now when I wanted to listen to some music through wifi (file was on my server) the music didn't really came true. I searched online for interference between BT and wifi and oh dear...it exists....
But as my laptop has BT AND wifi I guess there is a solution for this?? Is there anything I can do with my configuration to minimize interference?
I found this setting about BT in the minicard drivers here (http://support.dell.com/support/edocs/network/p70008/EN/props.htm) but it didn't really help, it was to good to be true

Bluetooth Collaboration
Bluetooth Collaboration enables general purpose input/output transmit suppression protocol between the IEEE 802.11 media access control (MAC) and an external Bluetooth chip to minimize transmit interference. Bluetooth Collaboration is enabled by default.
It should not be a problem btw:
Governed by the Bluetooth Special Interest Group (www.bluetooth.com), founded in 1998 by Ericsson, IBM, Intel, Nokia and Toshiba, Bluetooth transmits in the unlicensed 2.4 GHz band. It uses a frequency hopping spread spectrum technique that changes its signal randomly to one of 79 channels 1,600 times per second. If there is interference from other devices, transmission continues, but speed is downgraded. However, Bluetooth 2.0 + EDR avoids channels that are interfering with other wireless devices.