Performance Monitor's Active Directory Data Collector Set Not running on WIndows 2008 R2 Server Std SP1 - LSASS.exe Max CPU

Hi Folks,

I currently have two Domain Controllers maxing the CPU out with the LSASS.exe and system process.

Trying to run Performance Monitor's Active Directory Data Collector Set..I click on start and nothing happens..Both start\stop go greyed out and no report starts! :-(

If i try run from the cmd line I get

C:\>logman start "system\Active Directory Diagnostics" -ets
Argument 'Directory' is unknown.
Argument 'Diagnostics"' is unknown.

Error:
The parameter is incorrect.

Any ideas why it will not run? :-)

Thanks All

Ryan