Cookie trouble with logging in?
We were having an issue with Vbul in which you'd try to login, it would say "thank you for logging in" and reload the login page, and you woudln't log in.
Cookie path had been set to root ("/") and they suggested trying an alternate path. So I set the path to /forum/, which is the only other "auto" option the vbul cpanel offered. We then found that this caused people not to be logged into Photopost and in some cases, to have the same refreshing login problem but only for the gallery. So I realized I probably have to do the same for the photopost settings, and so I did (set the path to /forum/). This doesn't seem to have alleviated the issue though (cookies have been cleared on affected systems with no improvement). Do I have to go back to the original.
This seems more common than the original problem. Many people are having this issue.