Sixaxis.BluetoothMAC = "xx:xx:xx:xx:xx:xx" not working

[Cobaltikus]

I want to use GlovePie to set the master Mac Address of my sixaxis.

i have

debug = Sixaxis.BluetoothMAC
if pressed(Sixaxis.PS) then
Sixaxis.BluetoothMAC = "00:23:76:70:6B:4D"
end if

The above continously displays the old mac address because it never changes it when I press PS

if pressed(Sixaxis.PS) then
debug = Sixaxis.BluetoothMAC
Sixaxis.BluetoothMAC = "00:23:76:70:6B:4D"
end if

The above waits until I press PS, then it displays the old mac address and then does nothing

if pressed(Sixaxis.PS) then
Sixaxis.BluetoothMAC = "00:23:76:70:6B:4D"
debug = Sixaxis.BluetoothMAC
end if

The above never does anything, doesn't display anything, probably because it can't set the BluetoothMAC

It can detect movement and keypresses but just fails to set the BluetoothMAC. I have tried this on Windows VIsta Business x86 and Windows XP Professional SP3.

Can anyone help? Do you need any other information?