>>>>How can I disable chatter category? I can not read all this...
>>>
>>>Click "setup", then "edit" then uncheck "Show non technical categories"
>>
>>It was my original setting, but chatter category still shows up :(.
>
>Did you then click the "save" button?

I sure do :)

Ok, enough for today. Right now is 12:27 AM here in Boston and I'm going to bed...

See you tomorrow...