Dear Bill
Here are some things to check to try to resolve your problem...
1. Quik Invoice must be installed after Quik Reports, as this is the process that installs the tables necessary to report on QIP data. If you have reinstalled QR, then you must re-install QIP afterwards.
2. Make sure that your Links are correct. A valid link from the Details to the Header is required. For example, if you are reporting from the History table, you can use the Customer/Document field as the linking field. The Driving file would normally be the Details file.
The most common cause of the message 'Not all data in report is related' is due to a problem with the linking.
If you have to modify the links, remember to save your report again afterwards, so the settings are retained.
Good luck!