Like all software, OpenSesame has bugs. You can help iron out the kinks by providing a detailed bug report if something appears to have gone wrong. New OpenSesame releases appear regularly, so there is a good chance that any bug that you report will be resolved quickly.
You can report bugs by sending an email to s.mathot@cogsci.nl or by posting a comment on the OpenSesame home page <http://www.cogsci.nl/opensesame>.
If you report a bug, please provide the following information.
What exactly where you doing when the bug occurred? Please be specific: I was using the sketchpad, but it didn't work is not very helpful. I clicked on the line button in the sketchpad tab, and afterwards I was unable to re-open the sketchpad tab. When I tried to save the experiment, OpenSesame gave the following error: [error message here] is a fine description.
What did you expect to happen (i.e., what was the desired behavior of OpenSesame)?
What did happen (i.e., what was the real behavior of OpenSesame)?
Are you able to reproduce the bug?