Happening to me too. Every time I go to the main screen or click on a post it changes me to a new user.
Really annoying as I have a PM but can't read it as it takes me to other users PMs.
I stay permanently logged on too so not sure if that has anything to do with it?
I've been several different names. When I first came online it was already logged in as Bramble09...I thought a member of my family had secretly joined and left it logged in!
I have been myself, and have a flashing PM...However everytime I click on it, I get tken to someone elses PM's rather than my own!!!
Not being funny, but bit of a security risk! Sort it out admin!!