Wow, you can buy these now? Read about them ages ago, it's a great idea.
The M2000 is listed as being compatible, but I didn't see the C500 on the list.
My guess is that the application they gave you isn't working right. I'm assuming it runs over a BT COM port and sends keyboard events to the OS. Is there any indication of the connection being active in the application? I'd assume it would need to communicate with the device rather than just sitting passively listening to the COM port. Speaking of which, may people using GPS have had COM port troubles. Does the application allow you to select a port in any way? Perhaps there is a config dialog hidden away somewhere; I think I've seen an app install it's config in the Settings area in the Start Menu.
It may use something other than a COM port though...I'm not all that familiar with BT, so I'm not sure on what data transports it provides. The reason I mention COM ports however is that the fact that you can see it in the BT manager but not use it is a similar sympton of GPS COM hastles.
Also, do you have the latest bluetooth drivers on your M2000?
Finally, has whoever gave you it had any success? It could just be a broken device, not all that rare in brand new technology...
Edit: I've just read a review and it contained the following:
I entered a PASSKEY on my device and entered the same PASSKEY on the projection of the keyboard. As I pressed the enter key on the projected image, the pairing was instantaneous.
, worth a look as they describe setting it up.
Edited by fraser, 22 November 2005 - 11:33 PM.