Hello, all.  I wish I had more specific data to report but I've just had
a very problematic upgrade on Debian Squeeze although it also has a
number of packages installed from Wheezy.  I'm not even sure which
Trinity I was running beforehand - 12 or 13.

I do know that, after the upgrade, I could not boot into a GUI -
automatically or manually.  For some reason, important packages were
missing, viz., kdm-trinity, ksmserver-trinity,
network-manager-kde-trinity, and a pile of their dependencies.  The base
Trinity packages were installed.  Very strange but very painful.  Again,
I wish I had more specific details to report.  Sorry - John