db_session and set_flashdata problem

[eluser]cwpollock[/eluser]
This is a quick note to say that I DID find an answer to what was happening.

For some reason (yet to be determined) the security level for new users was NOT being set. This caused the the security setting function of the Auth module to UNSET my session (leaving my session blank). As soon as I gave my user a valid security level it worked!

I still need to track down why the security level is not being set on new users, but I think for now I solved my issue! I'll try to blog the solution when I work it out and post a link here.

Thanks for all the suggestions!