User Authentication in Crystal XCelsius

I created a XCelsius Document connecting to the universe using Query as Webservices.

The Webservice link returned data but only if I hardcode my userid and passwd in the excel model. I am not getting any dialog box for the userid and passwd if I remove the hardcoded userid and passwd.

I appreciate if anyone can email to my email tagu73@yahoo.com if there is any setup or parameter needs to be changed in the xcelsius or Query as Webservices.

Thanks,

Tagu