Here is the problem I'm facing,

I have install and integrate between SMF 1.1.7 and Drupal 5.2 I can login and out perfectly normal except if I log out from my SMF ( with user A for example ) and try to re-login with a different user ( user B for example ) than click back to drupal, my drupal site will show the forum has User B login but the Drupal is showing User A's account any help here?

thanks a lot