Delete Mono and install DigiKam instead. Mono comes from Microsoft via
Novell and therefore sucks by definition. DigiKam is part of KDE but it
works in GNOME, too.

Yes, I am biased. I am thinking of leaving Ubuntu over the inclusion of Mono
whose patent is at best doubtful. It was open sourced by Novell, but the
developer Miguel de Icaza says that patent protection only applies to Novell
and not other distros. Debian and Fedora are stripping out Mono, but
Canonical is thinking about adding Banshee as standard, ie. adding more
Mono.

The first thing I do after installing GNOME is to take out Mono and all
applications that rely on it. there is a deb file now that does this called
mononono.deb. See: http://tim.thechases.com/mononono/

Life was good before Mono and you will feel better for removing it from your
computer.