Crystal Reports 2008 Issue with configuring ODBC

I am installing and configure Crystal Reports 2008 on a citrix server. I have one ODBC connection to our AS400. When I test this I have two issues.

1st

Testing from the server. I click on the a new report and see the AS400 connection but when I double click it prompts for an username and password. The username is filled in with my userid. How do I change this to have the username blank.

2nd

Testing from the citrix client. When I create a new report I select the ODBC connection but I do not see the AS400 connection. Where is this pulled from and why is it different than when I run crystal directly from the server.

Any help would be appreciated and if you have any other tips on configuring the crystal application please let me know. I would like to get this configured correctly on our new citrix farm.

Thank you,

Barb