i get ads at http://www.mupal.com but i see public service ads when i go http://mupal.com any reasons....
It's one of those quirks of Adsense. I don't think anyone is sure why it happens. Usually it's the other way around. New site?
How new is this site? Google sees www.mupal.com and mupal.com as two "different" sites. If the site is very new it could be that the Adsensebot hasn't visited the mupal.com address yet.
he he...now ads are seen on both the url... i changed all the internal kinks with in the site from mupal.com to www.mupal.com and now it starts to work....
It depends on the location from where you are accessing the site , if you are accessing the site from xyz city then your ads may differ from other people accessing the site from another country with another IP .