Could you explain what you mean by 'reports not working' ?
Are you getting a message? If so, what does it say?
Assuming you're referring to CAPITAL Business Manager, CAPITAL will use the Windows default printer for reporting. Go into Devices & Printers in the Windows control panel area, and select the desired printer to be your default (typically right must click on the printer and select default).
On certain forms, invoices, quotes, etc., you're also able to to specify which printer to use in preference to the default. You can only change this by changing the settings inside the form template. If a printer that was selected no longer exists (cannot be found from the local computer), the form should warn you that the printer could not be found, and then should select the default printer next.