Activate Wifi/Bluetooth without Fn-Key

Hey everyone!

I have a kind of stupid problem. The keyboard of my Inspiron 6400 is broken. I "solved" that issue by just using an USB-Keyboard. Only problem is, that Wireless was deactivatet, and I simply can't find any option to activate it (using Windows 7).

Rightclick in the Netyworksfolder and "Deactivate"/"Activate" (that's what it's called in German, am not very sure about my translation) won't work, even reinstalling the driver leaves it deactivated, and Windows Problem Center also just tells me to activate it. When rightclicking on this Bluetooth sign in the Taskbar and chosing "Activate Bluetooth" i get a pop up telling me to use the Fn-Key....

There must be a way to do that!

Thanks a lot, have a nice day!

Ade