Page Missing After Upgrade

try resetting your permalinks in the admin

How to and where to reset it?
Is it under settings page?

Thank!

I already found the problem.
The problem exist in .htaccess

For those who have same problem with me,
just check your blog directory,
if there is a .htaccess file,
just change it permission to 777,
then go to Dashboard – Settings – Permalinks and click save changes.

If the file doesn’t exist,
just create one and change it’s permission.

that’s what I said . :>)
.htacces are where you get your permalink structure

DO NOT leave .htaccess at 777 or you will get hacked
chmod to 644 when done

I’m missing two main pages when I upgraded from 2.6.5 to 2.7 with automatic upgrade and I just tried what you suggested and still missing the two main page posts. Any other suggestions?

Thanks for your help

look in your database with phpmyadmin from your host control panel and verify if the page/posts are still there