You cant use gcvs, because the builded cvs does not know the -cvsgui switch which is required. Fix: Update from 1.0b2 to 1.0b3 (attached). How-To-Repeat: a) install b) go to prefs and exit dialog and you'll get a error log
Responsible Changed From-To: freebsd-ports->dinoex I will look into it.
State Changed From-To: open->closed Committed, Thanks.