Please Help me as soon as good

( I am vietnamese , I am not good at English )
My forum : http://vietnamman.com/forum .
This is error : +When I logined to my forum. For some minutes late, I refresh my Brower . And my account is other nick. Exp. I login as vietnamman but late nick is xxx. Pls help me .
+ When I return My forum. Forum load it's history, post's Counter is not correct. In database my forum have 700 posts , but display is 688...
Thanks for help
Nguyen trong Duc

[tnguy3n]

dude!! your forum is working fine, man!!!

[Erwin]

Log out and log in again. If that doesn't work, try deleting your cookies.

Update your post counters in the Admin CP and see it that helps.