Previleges Issue

[K. C. Huang]

The question is regarding the previleges config on a virtual server enviroment.

I managed to set the previleges for the user so that he can not access databases other 
than his own, but one problem still bothers me.

The user is able to list (show databases) all the databases on the server even though 
he  can not read any table inside.  

Can anyone show me how to hide all the other database names from virtualhost user?

Thanks in advance

Terry