User Login Problem Same user name can log in many times.
 

I have a couple notebook computers and found that I could log in as the same user multiple times from different computers at the same time.

This is not good as if a fake user does get validated or registered then he can give that user name to his friends they can all log on at once and flood your message base with crap in no time at all.

This is a security issue and should not be allowed for the same user name to be logged into the same vbulletin from different computers at once.