SCOM 2007 issue with VmWare ESX VM ?

hello,

I am getting what could be an issue with VmWare ESX Windows VM. After discovering the VM and installing the agent, i got an alert:

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The process started at 4:23:08 PM failed to create System.PropertyBagData.
Errors found in output: E:\SCOM2007\Health Service State\Monitoring Host
Temporary Files 2\678\GetOpsMgrDBPercentFreeSpace.vbs(63, 2) Microsoft VBScript
runtime error: Type mismatch: 'CDbl' Command executed:
"C:\WINDOWS\system32\cscript.exe" /nologo "GetOpsMgrDBPercentFreeSpace.vbs"
XXXXXXXX OperationsManager Working Directory: E:\SCOM2007\Health Service
State\Monitoring Host Temporary Files 2\678\ One or more workflows were affected
by this. Workflow name: Microsoft.SystemCenter.OpsMgrDBPercentFreeSpaceMonitor
Instance name: XXXXXXXXXX Instance ID:
{85E3BAF5-9229-2BB9-E50D-F3BE40378AF7} Management group: YYYYYYYY
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Any clue on that ? I will digg it any way!