To all,
1. I cannot delete Plugins, either single, multiple selection, or using the 'Delete Tree...' shortcut.
2. Two installs on Vista 64 bit.  One install brought all of my 'User Devices' into the plugin tree, the other did not.
Greg

So what is different about the two installs?
Or, why did one bring in your user devices and the other not bring in your user devices?

Josh,
No idea!  I flushed the plugins on both systems, brought them back in, and all seems fine.
Guess I'll wait for the next beta and see what happens...
Greg

I thought it sounded kind of odd. Both of my installs, XP Pro-SP3 32-bit and Vista Business 32-bit, seem to have no issues at all with the plugins.
I was hoping for something a little more concrete since you are using the 64-bit platform.