I have a question I can not logoff GDBT even I re-boot my system. E;v#'  
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I was trying to logoff for 10 minutes already.  T.d1?  
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I hit the logoff button and it not allow me to logoff. I refresh the screen I still saying I still logon and still can access my account.
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Did anyone know about it.

可以试试清除Cookies～

Thanks I will try it.

Is working la, Thanks a lot