I hope that I have the right forum for this. I have the following problem:
A while ago I had problems with our workstations that after someone logged in te it the screens get black for 1 to 1 minute. At that point we did something to solve it but now after about a half year it returns.

Our network exists out of Netware 6.5 SP7 servers, Zenworks for Desktops 7 and all workstations are Windows XP Sp3 with Client 4.91 SP4.

I have enabled the debug mode in the client and I found two strange things:

WMGrpPolUserXXXXXXXXXX.log
10/07/2008 10:02:54:953 Read reg. value User Has Group Policies: 0x1 in key Software\Novell\Workstation Manager\Group Policies
10/07/2008 10:02:54:953 Workstation cache is not in effect
10/07/2008 10:02:54:953 User cache is in effect.
10/07/2008 10:02:54:953 Read reg. value User Logged In: 0x1 in key Software\Novell\Workstation Manager\Group Policies
10/07/2008 10:02:54:953 Checking whether OriginalGP exists
10/07/2008 10:02:54:953 Entered User GP Critical Section
10/07/2008 10:04:07:765 Entered Wks GP Critical Section
10/07/2008 10:04:07:765 Restoring user cache only.

10/07/2008 10:04:07:765 Entered GPCopy(C:\WINDOWS\system32\GroupPolicy.UserCache, C:\WINDOWS\system32\GroupPolicy, handle, 0x80000070)
10/07/2008 10:04:07:765 Copied C:\WINDOWS\system32\GroupPolicy.UserCache\GPT.ini to C:\WINDOWS\system32\GroupPolicy\GPT.ini
10/07/2008 10:04:07:765 Copied file C:\WINDOWS\system32\GroupPolicy.UserCache\User\MIC ROSOFT\IEAK\install.ins to C:\WINDOWS\system32\GroupPolicy\User\MICROSOFT\IEA K\install.ins


ZenPolXXXXXXXXXX.log

10/07/2008 10:02:54:343 ENTER SearchContainersList ##############################
10/07/2008 10:02:54:343 SearchContainersList -- searchLevels = 0
10/07/2008 10:02:54:343 SearchContainersList -- levels = 2
10/07/2008 10:02:54:343 SearchContainersList -- levelsToSearch = 2
10/07/2008 10:02:54:343 FindPackage - objectName = grundel
10/07/2008 10:02:54:343 FindPackage - attrName = zenpolPolicy attrType = zenUserPackage
10/07/2008 10:02:54:343 FindPackage - context->szFullDN = jagm.grundel
10/07/2008 10:02:54:343 FindPackage - context->szTreeName = GRUNDELTREE
10/07/2008 10:02:54:343 FindPackage - context->dwConnType = 2
10/07/2008 10:02:54:343 Attempting to get cached attribute: DN Attr
10/07/2008 10:02:54:343 FindPackage ***** ZPGetObjectAttribute ***** NO DATA
10/07/2008 10:02:54:343 EXIT SearchContainersList ##############################
10/07/2008 10:02:54:343 EXIT ZENGetPolicyDNList
10/07/2008 10:02:54:343 PolicyDN is: P
10/07/2008 10:02:54:343 WMGetAllAssociatedObjects EXIT : 0x0
10/07/2008 10:04:26:515 ENTER ZENGetPolicyDN -- treeName = GRUNDELTREE policyType = NT User Printer
10/07/2008 10:04:26:515 ENTER ZENGetPolicyDNList -- tree = GRUNDELTREE policyType = NT User Printer

10/07/2008 10:04:26:515 ENTER GetWSOperatingSys
10/07/2008 10:04:26:515 Microsoft Windows XP 10/07/2008 10:04:26:515 Professional 10/07/2008 10:04:26:515 Service Pack 3 (Build 2600)
10/07/2008 10:04:26:531 EXIT GetWSOperatingSys version = 5
10/07/2008 10:04:26:531 GetPolicyDNList - objDN = jagm.grundel
10/07/2008 10:04:26:531 GetPolicyDNList - package = zenUserPackage policy = NT User Printer
10/07/2008 10:04:26:531 FindSearchPolicy - ZFD3
10/07/2008 10:04:26:531 FindPackage - objectName = grundel
10/07/2008 10:04:26:531 FindPackage - attrName = zenpolPolicy attrType = zenContainerPackage
10/07/2008 10:04:26:531 FindPackage - context->szFullDN = jagm.grundel
10/07/2008 10:04:26:531 FindPackage - context->szTreeName = GRUNDELTREE
10/07/2008 10:04:26:531 FindPackage - context->dwConnType = 2
10/07/2008 10:04:26:531 Attempting to get cached attribute: DN Attr
10/07/2008 10:04:26:531 FindPackage ***** ZPGetObjectAttribute ***** NO DATA
10/07/2008 10:04:26:531 FindSearchPolicy - returning 3
10/07/2008 10:04:26:531 **********************************************


Has anybode a idea where to look for?

Thanks,

Marcel