well ok solved and it works..
i just must the browser also clear the cache..

well thanks alot for the good Portal MOD.

OK it works..
but another question..

what should I do for getting the permanent style theme css?

1. I want to change 2 files, common.css and colours.css under folder /forum/styles/prosilver/theme/
2. and upload/replace to /forum/styles/prosilver/theme/
3. and ACP->General->purge chache
4. and ACP ...

Your Portal Version: 1.0.4
Your phpBB Type: Standard phpBB3
MODs installed: No
Your knowledge: Basic Knowledge
Boardlink: http://www.nurmadinah.com/forum/

What have you done before the problem was there?
Just installing the Portal with manual, step by step with default theme (prosilver ...