Sorry if this has been asked before; I tried several searches but found nothing.

I have NP 4.3. SEveral times when I get back to NP the next day, the program shortcut on my desktop is gone, and the shortcut pinned to the start menu is empty (in properties) and doesn't work. The shortcut image is gone.

This didn't happen with the earlier version (I am a new user.) I can make the shortcuts again and the program works, but this is annoying.

I should add that the shortcuts in the start menu/programs are there and not affected.