ok..here my step-by-step fix it :
1. i already try using, mozilla, chrome, safari, IE with no luck, and i run java diagnose on my browser, it said almost all my plugin is the problem, google analytics, twitter, facebook, link-to, ..etc. so i just let it be.
2. i already try change my wordpress theme with another theme, but the problem still unsolved
3. and i go to my hosting cpanel, download the wp-config.php and add the “define(‘SCRIPT_DEBUG’, true);” (without quote) and replace the existing wp-admin.php in my cpanel, and login to my wp dashboard..and now my wp dashboard run smooth….
yess…it solved..
i’m using this step
Step 2: Enable SCRIPT_DEBUG
You need to turn on script debugging. Open wp-config.php and add the following line before “That’s all, stop editing! Happy blogging”.
define(‘SCRIPT_DEBUG’, true);
Check to see if you are still having an issue.
in now i can post the articles. thanks @keesiemeijer