I think I broke my program manager
So I was trying to install vmware on my computer (Ubuntu Feisty, 7.04) and while installing it, the window for the serial popped up as I was IMing somebody, so it automatically hit enter took me to a screen saying the key was not valid, so I hit back, and it stopped responding, I waited for about 10 minutes before force quitting it, but the add/remove was still running, and I tried ending the add/remove process and every time I restarted it the window for installing vmware was still there, unfortunately, it wasn't going anywhere as the dialog box with the installation questions wasn't there, so I restarted the computer, hoping that would put me back at square one and now I can't open my program manager or add/remove. Every time I try I get this message
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.
Anybody got anything for me?