I wanted to redirect my website now www to www ... lookied into some help and then went and made fallowing changes
System > Configuration menu and from the left panel click the "Web" button.
Unfold the "Unsecured" set of options and change the "Base URL" option from http://yourdomain.com to http://www.yourdomain.com.
after that non of my pages are openning ... infact admin is also not opening as its getting redirected ....
Please help ...