Query Notifications/ Service Broker Problem

Hey , I encountered a problem using SqlDependency and notification services.
I€™ve created a database with tools from c# Express 2005 and attached it to the sql server express 2005. And it turned out that €˜dependency_OnChange€™ in my application is triggered each time I execute the command.ExecuteReader(); and it shouldn€™t, because the command is just the select statement of columns and rows for which I wait to be modified.

SqlDependency dependency = new SqlDependency(command);
dependency.OnChange += new OnChangeEventHandler(dependency_OnChange);
command.ExecuteReader();//when the program gets here dependency_OnChange is called


So I Used the example from here :
http://msdn2.microsoft.com/en-us/library/a52dhwx7.aspx

and with AdventureWorks it behaves as it should , but when I change the connection string and select statement in the example to work with MyDatabase, the problem appears again.
So there is something wrong with MyDatabase ?

The select statement I used was €œselect Name, Pass from Users where Name like €˜L%€™€?;
So theoretically this should work but it does not and I end up in an infinite loop with
dependency_OnChange called cyclically €¦

I€™d be grateful for any advice !