Hi
Appropriate input would be :
updateDeviceProfile,name,russell,userLocale,English United States
Its a different call (updateDeviceProfile) for UDPs, name should refer to the UDP name (i.e. the UDP is called russell in this case) and the userLocale field to update is case sensitive.
AXL likes to positively acknowledge lots of stuff that doesn actually work; its very helpful like that.
Regards
Aaron