strange problem in IE
 

Iam using Vbulltein 3.8.2 form last 2 months it was working fine suddenly
iam getting a strange problem in internet explorer when ever i use IE to login into my forum with the credentials after i login still i can see that iam not logged in but i can see in current active users that iam logged in but in forums right side i can see iam still a guest user whats the issue its working in firefox and chrome