Alienware m17x can't disable SLI

Hi, I have the new alienware m17x and everything has been perferct until I upgraded to windows 7. I'm using the 64bit home version.

I have the dual Nvidia 260m in SLI configuration:

My problem is that I usually disable sli, when playing world of warcraft in windowed mode, but for some reason, that is not an option anymore under the Nvidia control panel, there is a radio button for it, but its greyed out.

Does anyone know how to disable the sli in windows 7?
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  1. hey mac, some things to try out:

    Do you have your hybrid and integrated graphics disabled in the BIOS? If you do then SLI will be on 24/7 by default. If hybrid is disabled, then you will not be able to switch between the SLI and the integrated video card.

    What driver version are you using?
  2. how do you disable the hybrid graphics inthe bios?
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