From Bugzilla Helper:
User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.2.16-22smp i686)
Fisher beta does not allow me to use my logitech USB mouse (not even after
selecting it in the mouse config).
Steps to Reproduce:
1. plug in USB mouse
2. start installer
Known issue, fixed in internal CVS.
You can either boot into the text mode installer, or use another mouse.