I have installed ProjectHQ, or I should say attempted to.
I get LOTS of errors when I get to the step "paster setup-app config.ini" and I wanted to uninstall and start over.
How can I do a complete uninstall so I can start over from fresh?
I am running Ubuntu Karmic which seems to default to Python2.6

Re: How do you Uninstall ProjectHQ?
It depends on the settings in the configuration file (in your case, "config.ini"). If you haven't gotten to the stage of setting up a database, you can just delete config file, recreate it, and start again.
However, what are those errors that you are getting? Perhaps there's something else that needs to be done?