Forum Log in problems
 

I have a problem where, when my registered users log into the site they get the thank you for logging user name"Xyz" message but when they are redirected to the forum, they are not shown as logged in until they click on a thread. Then they show up as log in.
Since most think there is a problem they are no clicking on threads and leaving the site.

Can someone please tell how I fix this??

Thank you.