I installed the Lightning calendar extension in my Thunderbird to manage the numerous meeting requests I've been receiving lately and it didn't work right out of the box. It wasn't detecting meeting requests and I couldn't even see the calendar. After a bit of googleing I found at the bottom of this thread that in Ubuntu 7.10 Gusty Gibbons you need to install the libstdc++5 package.
I ran the command: sudo apt-get install libstdc++5
Uninstalled and reinstalled the lightening package and it worked.
Michelle Trusty
