Package Installer Error
 

Using the package installer in Intrepid . . . Trying to download Limewire through it. The box froze and I force-quit it. Now, whenever I try to open up the file through the package installer to restart it, it says there's already an instance of one of the programs running (either it, synaptic, or another) . . . but there aren't, and even the original installer isn't in the list of processes in System Monitor or in HTOP. I tried restarting. I also tried redownloading/resaving the file completely instead of just opening it. I'm a little frustrated. Any help?

Which programme are you getting errors in? Your package manager? Or Limewire?

The package installer. It comes up, then prompts me to allow administrator capability with my password, then comes up again, processes something, and then errors . . . Only one software management tool is allowed to run at the same time, please close the other application, e.g. Update Manager, aptitude, or synaptic first.

But none of these are running. I didn't open them, and they're not listed in processes. . . nor is the original Package Installer (whichever is default with Intrepid, I guess; neither one of those three).

Intrepid? The ubuntu version? Lets double check the simple stuff, since it thinks it is:

Did you want me to put that into Terminal? I tried that for the sake of not wanting to wait, and I'm still getting an error. If not, let me know what to do with it.

Your installer probably wrote its process id to a file, somewhere like /var/lock/installer.lck.
It checks that each time you run it.
You'll need to remove that file first, as root user.