Since we installed the 10.1.3 patch, workstations that are newly registered are assuming an existing workstation's GUID, causing all sorts of confusion.

These are workstations that have never had any Zenworks client on them before and are not imaged machines (ie they have Windows installed on them from scratch). We are installing the pre-agent which then installs the full client and bang! - the workstation shows up with the Zenworks control panel with the alias of an already registered workstation.

They only way we can get them to obtain their own GUID after this is to deleted the "C:\Program Files\Novell\ZENworks\conf\guid.txt" file off them and reboot the machine.

Any ideas what may be causing this?