Installing Silverlite or Mono

[Hardcoretexan]

If you're really after Mono, could you please open a Terminal (Ctr+Alt+t) run:

sudo aptitude search mono | grep ^i

That will show you what mono packages you have installed on your system.

batman@BatComputer:~$ sudo aptitude search mono | grep ^i
[sudo] password for batman:
idA wine-mono0.0.8                  - Microsoft Windows compatibility layer (.NE
i A wine-mono4.5.4                  - Microsoft Windows compatibility layer (.NE
batman@BatComputer:~$