PowerShell Event Viewer log full

[gilagry]

It appears that when backup exec performs a backup of Exchange 2007, the PowerShell event viewer log becomes full and I have to clear it up.

We are able to successfully backup Exchange 2007.  We are even able to restore  individual mail message and folders from the Information Store backups.

How do we stop the PowerShell log on the Exchange Server from getting full after each backup?

Thanks!

[gilagry]

Here is one of our errors (duplicated a bajillion times)

Event Type: Information
Event Source: PowerShell
Event Category: (6)
Event ID: 600
Date:  8/28/2007
Time:  4:39:52 AM
User:  N/A
Computer: AUSEX1
Description:
The description for Event ID ( 600 ) in Source ( PowerShell ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: Registry, Started,  ProviderName=Registry
 NewProviderState=Started

 SequenceNumber=6307

 HostName=Default MSH Host
 HostVersion=1.0.0.0
 HostId=ad4fe37d-9717-423c-ab6d-34d3775ff144
 EngineVersion=
 RunspaceId=
 PipelineId=
 CommandName=
 CommandType=
 ScriptName=
 CommandPath=
 CommandLine=.