HUGE dashboard issue

I have a big problem with my dashboard, whenever i click the link in the wp-admin menu it loads http://domain.com/wp-admin/admin.php?page=index.php (domain being my site name) and it shows nothing, i can only see the dashboard when loggin in or by click-ing the meta site admin link in the frond page which takes me to http://domain.com/wp-admin/ . Can anyone please tell me how to solve this issue?