Bluetooh Problem after upgrade to Win7

I have an XPS M1330 with 4 GB. I updated from VISTA ULTIMATE 64 bits to WIN 7 ULTIMATE 64 bits and the BLUETOOTH function and icon dissapeared.

After contacting the DELL Support Center and getting suggestions like change mother board, donwload a new driver, today I was told that the XPS 1330 do not support WIN7 and if installed, the Radio Manufacturer (for the bluetooth) do not have yet ready the Win 7 Driver for bluetooth, so best before reinstalling is to wait a couple of month.

Did somebody hear a similar story ? Solution ? Comment ?

Thanks + Regards