That's strange. It should display profile for every user.
Well, there is a work around. For example, your profile is located at
http://forums.graal2001.com/forums/m...fo&userid=3234
http://forums.graal2001.com/forums/member.php?s=&action=getinfo&userid=
3234
So, change your userID to that person's userID number. (It is located above their post count, etc)