InstantRails, Firefox, and Gmail

After a couple of false starts, I just installed the next to latest
version of InstantRails and worked through the O'Reilly tutorial by
Bill Walton. Ruby Rocks! I'm sold. I just have one teensy little
problem, though. Firefox can't seem to being up my Gmail account
anymore. Has this happened to anyone else? Any ideas, please?

It was an issue with the ports. I switched from port 3000 to port 3001
for the RoR application, and now Gmail is happy. Funny thing is it
only affected Gmail. Google Calendar, Google Docs, and Google Groups
were fine. I didn't test any other Google apps.