While I was on vacation last summer Ed Wilson aka Microsoft Scripting Guy asked me if I would like to write a guest post for the Hey Scripting Guy Blog. Of course !! was my immediate response.
And here it is:
Weekend Scripter: Use PowerShell to Troubleshoot Group Policy
The script referenced can be downloaded from here
http://gallery.technet.microsoft.com/scriptcenter/Get-GPProcessingTime-a124aaf5