Not sure how or when this happened, but I have an application called ncurses-bin that is shown in the Application Manager with a size of 0 kB.

The application manager won't let me uninstall it. Using apt-get remove won't get rid of it. And trying to "apt-get install ncurses-bin" just generates errors.

I think this is causing me other problems, specifically not being able to install tcpdump.

I'm looking around for files named ncurses-bin to delete manually, but don't know where to look and can't find them. They probably didn't really get installed anyway. Is there a way to force this to be installed? Or is there a file telling the Application Manager what's installed so I can delete the (probably) bogus entry for ncurses-bin?