I don't know what happened but when I connect to the net and go to Yahoo! and friendster the connection is very slow, and just pure text. There is no pictures, etch.. and when I chek the error console I see lot of error like this:

Warning: Unknown property '_margin-top'. Declaration dropped.
Source File: Yahoo!
Line: 2196

Warning: Expected declaration but found '*'. Skipped to next declaration.
Source File: Yahoo!
Line: 2196

And etch.. they are too many.. what I'm going to do now? Help me.. thnks

Clear your internet cache and try again.
In Internet Explorer:
Tools > Internet OPtions > General Tab > Delete Files, cookies and clear history

In Firefox:
Tools > OPtions > Privacy Tab > Clear all (or Ctrl+Shift+Delete)

Thnks for helping me! But still there is no picture.. I don't know why.. there are errors again like:

Warning: Unknown property '_height'. Declaration dropped.
Source File: Yahoo!
Line: 2727