crystal report viewing problem

Question

I have designed some reports in C#.net. I have used the Database Files option in Crystal report wizard.The path to all reports are the same, but now i have moved the database to other location, i only chaned the connection string in my application. Now the application runs fine, but while viewing reports, it gives problem and asks for username and password....
Should i create DSN of that path and use it in crystal reports, but than i have to redesign all reports....
Is there anyother way to view reports....