It's a fully updated 2008 R2 box running WMF 5.1. I've got a powershell script that, under normal circumstances, e-mails me on startup or shutdown. It's working fine on a different 2008 R2 box. On this new build, however, I'm not getting the e-mails on startup or shutdown. I do get them when I call it through the command line. I added them to the powershell section of gpedit.msc using the built-in Administrator account, which is, as of now, the only account on the machine. Checking HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts in regedit reveals an empty key. I tried importing registry keys taken from the box where they're working, to no avail.
This is a standalone server. No domain. I'm open to ideas.