Report a Bug
For now, the fastest way to report a bug is to use the Fez Developers Mailing List.
When mailing the list, please post as much information as you can about the problem - including the version of Fez you are running, and any error messages you receive (be sure to check the Fez log file!). A detailed list of steps required to reproduce the bug will also help us get to the bottom of the matter quickly.
In the coming months, The University of Queensland Library hopes to open its internal Fez issue tracking system to the general public, so that community Fez developers may log their own issues - and help resolve other issues already known to the Fez team. Expect an announcement on the Fez mailing lists when this occurs.