Webbrowser: how to disable Error message?

[vnviews]

Hi, all.
I searched through the forum, but still can't resolve my problem. So I would like to ask you for help.
My problem is: when I try open web page by webbrowser, many times error dialogs appear: syntax error, object required etc. Strangly that they appear even I set the browser to silent mode by:

Webbrowser1.Silent = True.

. I also disabled the JS error debug in IE.
Can you tell me what do I miss still?
Thank you very much.
Tuan.