I've applied MP2 to fairly new install of NetBackup 5.1 on Windows 2003. Now, when I edit or just even look at the properties of a schedule and click ok the console hangs and I have to kill it via Task Manager.
I've also created a few empty policies (no clients, default schedule for the type), and they don't exhibit this behaviour. I have these as placeholders for clients further down the priority list in the project.