We have corrected a problem with the Ticket Preview window that could cause tickets to canceled without the operator realizing what had actually happened.

This problem only effects users that have enabled the Ticket Preview window.

The steps to reproduce this problem where as follows:

1. Enable the Ticket Preview window.
2. Click Print on the Ticket view which then opens the Ticket Preview window.
3. Click the Print button on the Preview window.
4. Bring Dispatch to the foreground (ie. minimize the Ticket Preview).
5. Click Print on the Ticket view again.
6. A dialog is displayed which says 'The previous attempt to print a ticket failed...That transaction will now be canceled.'
7. Click OK (which is the only option) and the last ticket is canceled (it disappears).
8. The Ticket Preview Window now comes to the foreground with the new ticket and the operator assumes that all is well.
   

Somewhere along the line, the Print Preview got switched from being a Modal window to a Non-Modal window. This has been fixed so that this problem can no longer occur.

You can download the update from this page:

http://dispatch.canadianscale.com/downloads

The very last item is the link to the update. Don't worry about the date - that is the date that the link was posted to the page - it has nothing to do with the file that you will be downloading.

Thank you to Christina Hébert of Villeneuve Construction for reporting the problem and providing the essential clue about the problem being related to the Ticket Preview window.