Path for the group policy content is null

On a number of machines I am getting this error:
There was an error while accessing content for policy "Default Workstation Policy". The error was - "Path for the group policy content is null."

However, other images are working. This leads me to believe that the issue is machine specific but I cannot figure out the exact solution. Please help.

Windows XP SP2 on the desktops
Bundle Module 10.0.3.2
Content Distribution Point 10.0.3.0
Inventory Module 10.0.3.2
Policy Module 10.0.3.2
Remote Management Module 10.0.3.0

Part of log:
[DEBUG] [7/26/2008 8:30:17 PM] [] [ZenCache] [] [(Thread 20) EnumerateFiles returning 1 items in 1 ms] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [Path for the group policy content is null.] [] []
[ERROR] [7/26/2008 8:30:17 PM] [] [grouppolicy] [POLICYHANDLERS.WinGPPolicy.ContentError] [There was an error while accessing content for policy "Default Workstation Policy". The error was - "Path for the group policy content is null."] [Path for the group policy content is null.] [ccd5a8f7b8fb4005f32aee73807ca5e9]
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [Execute policy operation completed for policy type - grouppolicy] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [the status returned is NoAction] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [Setting handler completed to true.] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [Checking to see if timer thread is still alive.] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [Timer thread is still alive. Aborting it.] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [Timer thread aborted.] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [calling CreateActionResult(CreateActionHandlerResult normal] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [grouppolicy] [] [UpdatePostActionRequest called time out is 60] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [ZenCache] [] [(Thread 20) EnumerateFiles(where owner = '[[ActionManager]]SYSTEM' and key like 'grouppolicy%') called] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [ZMD] [] [CacheSetting.CacheDirectory.get: Using default cache directory C:\Program Files\Novell\ZENworks\cache\zmd\ZenCache] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [ZenCache] [] [(Thread 20) EnumerateFiles returning 1 items in 1 ms] [] []
[DEBUG] [7/26/2008 8:30:17 PM] [] [ZenCache] [] [(Thread 20) DeleteFile(grouppolicy#03674539d2501a498850f3c029a 67afa_grouppolicy.xml, UserContext{_LocalId=none; _RemoteId=[[ActionManager]]SYSTEM}) called] [] []