F5 Management pack install fails

I uninstalled the F5 management pack that I was running in order to upgrade to the latest version. The uninstall worked fine. However when I went to install the new management pack I received the following error:

 

 

<08-26-2009 08:03:33> INFO: Changing F5MonitoringService startup type for Distributed Root Management Server to Automatic

 

<08-26-2009 08:03:34> FATALERROR: Health Service could not be started: System.MissingMethodException: Method not found: 'Boolean System.Threading.WaitHandle.WaitOne(System.TimeSpan)'.

 

at F5Networks.ManagementPack.Setup.CustomActionEngine._ChangeServiceState(String serviceName, Boolean start)

 

at F5Networks.ManagementPack.Setup.CustomActionEngine._RunInstall()

 

<08-26-2009 08:03:34> WARNING: Rolling back Installation.

 

<08-26-2009 08:03:34> WARNING: Cannot roll back database changes

 

<08-26-2009 08:03:34> INFO: Removing all temporary files created during install/uninstall

 

 

<08-26-2009 08:03:35> INFO: Removing Windows performance counters.

 

<08-26-2009 08:03:35> FATALERROR: msi failed to run with exit code: 1603

 

<08-26-2009 08:03:35> FATALERROR: Standard error:

 

<08-26-2009 08:03:35> FATALERROR: Standard output:

 

<08-26-2009 08:03:35> FATALERROR: The F5 Networks Management Pack setup has failed.

 

 

Any ideas?

 

 

Attached is the results from the System information script.

 

 

Thanks,

 

 

Glen