Inventory doesn't seem to be working properly anymore.
It was running fine for some time but now it doesn't appear to be updating
properly for all workstations.
I enabled debug logs on a client and found these errors in the InvPol debug
log but not sure what they mean:

03/03/2005 16:39:01 WorkStationInventoryPolicy : Workstation
Pkg-RC-Inventory:WinXP:Workstation Inventory Policy.PEORIA
03/03/2005 16:39:01 Reading Workstation Inventory Policy attributes....
03/03/2005 16:39:01 Read WS Inv Policy attribute zeninvFullScanCopy:1
03/03/2005 16:39:01 Read WS Inv Policy attribute
zeninvScanFilePathCopy:\\ZEN-SRV\VOL1\zenworks\Inv\ScanDir
03/03/2005 16:39:01 Read WS Inv Policy attribute ZEN:INV SW Scan Flag:1
03/03/2005 16:39:01 Couldn't read [zeninvDisableScansCopy] attribute from
Workstation Inventory Policy
03/03/2005 16:39:01 Couldn't read [zeninvScanType] attribute from
Workstation Inventory Policy
03/03/2005 16:39:01 Read WS Inv Policy attribute
zeninvForceFullScanSchedule:5
03/03/2005 16:39:01 Read WS Inv Policy attribute zeninvCustomScan:0
03/03/2005 16:39:01 Read WS Inv Policy attribute
zeninvCustomInformationExe:zRegScan.exe -d
03/03/2005 16:39:01 Couldn't read [zeninvRetainSWDataInDatabase] attribute
from Workstation Inventory Policy
03/03/2005 16:39:01 Couldn't read [zeninvDictionaryPath] attribute from
Workstation Inventory Policy
03/03/2005 16:39:01 Couldn't read [zeninvIBMNames] attribute from
Workstation Inventory Policy
03/03/2005 16:39:01 Couldn't read [zeninvZippedNames] attribute from
Workstation Inventory Policy
03/03/2005 16:39:01 Couldn't read [zeninvAssetInformation] attribute from
Workstation Inventory Policy
03/03/2005 16:39:01 Couldn't read [zeninvHWConfigRules] attribute from
Workstation Inventory Policy
03/03/2005 16:39:01 Couldn't read [zeninvCustomAttributeList] attribute from
Workstation Inventory Policy

It looks like it might be some type of rights that are missing but not sure
what?