Last night while using PM, my navigator panel suddenly became a small square in the middle of my contact sheet and caused the entire application to freeze. I could not close it and had to hit control, alternate, delete to get out of the program and re-start. This happened three times in the space of 15 minutes. I have not had this on my desktop machine just my laptop, which is a Dell 700m with Windows XP home. The navigator square that came up dance about the screen and x'ing it closed did nothing but get rid of the box, however the application was frozen. Got any ideas on this quirk??