I solved the problem now. Thanks for the your instructions.
I actually logged into wp’s mysql database and change the value back to the old URL. It’s the second row of wp_options with the value “siteurl” of “option_name”
Hi govpatel, Thanks for you reply.
The problem is that I can’t even access to the General->settings now because I changed the value of “WordPress address (URL)”.
When I tried http://xyz.com/wp-admin to change it back, it always forwards me to http://xyz.com/about/wp-admin, but http://xyz.com/about/wp-admin doesn’t exist.
