I've just started trying to use PM and it looks like it will be very helpful.

However it seems to get "blown away" frequently, requiring a reboot to restore it.

I'll be adding or updating an app w/APP manager, APP manager will minimize and the PM is gone.

Any idea as to what's causing it to die?
/edit
For example today Canola would not fire off, so I removed it and reinstalled. When the reinstall got to the choosing directory stage personal menu was blown away. Reboot and PM is back.