Citrix ICA connections. How to set default login page to your domain

I have a problem with Citrix ICA connections whereby when I attempt to make a connection to the published desktop the default login environment is set to the “Workstation (This computer)” rather than our companies Domain. In order to fix it I have to use the drop down box and select the ABC-CORP domain and then I can put in my credentials.

This possesses a real problem for our users because they cannot remember to use the drop down box and select the domain option before logging in.

How can I fix this so it always defaults to domain option instead of workstation.

Any help is greatly appreciated