Vista - Vista Business Network Permissions

Hi

I log into a Windows 2003 Domain from a Vista Business Edition
machine. My domain account is part of the Administrators group on the
local Vista Business machine. User Account Control (UCA) is turned
off for my account my the Vista Business machine.

I have I belong to a domain group called Dev, which has Full Control
permissions to a network folder.

When I navigate to the network folder (\\domain\folder) and attempt to
create a new file, modify a file or delete a file from the network
location, I get an error dialog saying I don't have permissions.

If I log onto an XP machine and create a new file on the network
location, the action is perform successfully.

Can anyone help, this is extremely frustrating!