I'm delivering a Xerox Workcentre 4260 driver via an iPrint policy to XP clients that has Job Accounting Enabled within the driver. When an iPrint policy installs the driver, the job accounting doesn't function correctly. All the options appear, but the copier reports authentication failure. If I install the printer via the iPrint webpage, authentication works fine. Both the policy and the webpage use the same driver repository. Why would this work via the webpage, but not an iPrint Policy?