I've updated my installed packages with ubuntu's update manager and got an updated wine 1.2, which now I can get the font dialog.
As for the copy problem, it still exists, I pretty much lock up my PC if I attempt to copy any text from the static control.
What version of ubuntu? running gnome or kde? are you using compiz? I haven't tested disabling compiz to see if that fixes copying text in mirc, but i will post back when i test it out.
Im running ubuntu 10.05 (update manager says im up-to-date) running gnome 2.30.2 and I have compiz running.