We have not been able to determine the root cause to this problem in the OnTime 2007 windows client with not being able to print reports. Although I did resolve this same exact problem for another user that was experiencing this issue by assigning a default printer on the local workstation. The user did not have any default printers installed on the local machine at the time of the error. After installing a default printer the user did no get this error message anymore.

Thank you,