WPMU/bbPress Login troubleshooting

I installed bbpress and integrated it with my WPMU setup a few days ago, and I've had some users say that they were seeing login weirdness -- WPMU requires login to upload an image file (it doesn't accept), users not able to logout, etc.

It took me a while to get cookies sorted out, but it has been working fine for me in all tests for the past 3 days. In fact, I can't duplicate anything that is being reported, but I also deleted older cookies a lot.

  • Could it just be that they still have old cookies that need flushed?
  • Is there a way to test that, or should I just post instructions on how to clear cookies?
  • If cookies are the issue, how long until the old cookies expire? Or at least go stale.