The problem lies on ‘All In One SEO Pack’ pulgin. Now it is ok.. thanks
I just solved my problem. I was searching google and found interesting tips: Microsoft Word formatting caused this problem. I think the numbering list.
I created my last post by copying my prepared text from Microsoft Word. Somehow, Microsoft word created some incompatible code for displaying on Internet Explorer.
In addition, my previous problem was also like this: my sidebar was mislocated at the bottom of page when displayed on Internet Explorer, but it work perfectly on Firefox and Chrome.
How did I solve it: I recreate my last post using simple notepad editor. The paste back into my new blog post. Wow, it shows perfectly on all browsers.
I Hope other users who experience similar problem can try this method also.
Cheers,