Kvitz

I am having trouble granting execute privilege to users at a mysql database, so that they can call the database procedures. No matter what I do, I always get an error 1044 - Access denied for user (...) I've tried on phpmyadmin and on a remote sql client. Do you have any idea what am I doing wrong?

I have registered with summerprojects.co.cc, but I have deleted that domain. I would like to know if it is possible to change it to summerprojects.heliohost.org (the first option when we register).