Chuck, I think it's worth going for a dive first if the alternative is a complete delete and start again. I can always do that next.
If I go to the pp_setting tables I see three cookie related items. Is this correct and are there any others that would need changing or checking?
* Photopost Cookie Path - /
* Forum Cookie Prefix - phpbb3_fz36p (This is actually the cookie name, not the prefix, is that correct or not?)
* Photopost Cookie Domain - .poultrymatters.com
Doing the above seems to have returned the cookies to their original arrangement. I can now log in to Photopost again, but I get logged out when I flick between forum and gallery.
Chuck is there another setting I should change in the tables? I'm also thinking that the cookie prefix might be different to the cookie name and I'm putting in the cookie name.