I'm trying to use the accounting software called Quasar (http://www.linuxcanada.com/quasar.shtml) in Mint 7 (XFCE). I got it as a .deb file and it installs fine (no errors, all dependencies met). It is installed in /opt/quasar. The install procedure creates menu items in the Office submenu. But these do not work - i.e. quasar doesn't launch. If I click on /opt/quasar/bin/quasar in Thunar, nothing happens. I'm somewhat baffled because it works fine on my other computer (running Ubuntu 9.04). Would anyone have suggestions as to what might be wrong/different/incompatible?