in my php portal system, after i login successfully in my computer 'A'..my status is 'Online', i can access all the modules that only accessable by user who have logged in. BUT, when i login at another computer 'B', password correct..but my status is 'Offline'..and i cant access all the modules that only accessable by user who have logged in. i think this problem is regarding the browser cookie..is it? what setting for my IE have to change to? any idea?