I found a bug! Should I let you know?

Yep, file an issue on the Google Code project site for Spaz: http://code.google.com/p/spaz/issues/list

If you reeealy wants to help, turn on debug mode (located in Preferences, the last tab on the right) and restart. From then on, your Documents/My Documents directory should keep a running log of the mysterious goings-on that go on within Spaz. It's called spaz-debug.log. If Spaz misbehaves, sending a copy of this arcane file when logging a bug in Google Code should be perty useful to the team.