When developing a report, it's often against a development or "test" database. When it comes time to point your report to the real thing;
1. Select Database | Set Location.
2. Click the "Set Location" button.
3. This will launch the Crystal Database Explorer. Find your new database.
4. Click the "Set" button.
5. Crystal should now ask you if you want it to "Propagate Server and Database Changes across tables with the same original information?" Click yes.
6. "Ok" your way back out.