If you receive the error below when selecting Help > User Guide from within Advanced Scheduling then an Adobe update is required.

Refer to this Adobe link to install the latest build and rectify the problem.

http://blogs.adobe.com/dmcmahon/2012/08/21/acrobat-insufficient-data-for-an-image-error-after-updating-to-10-1-4-or-9-5-2/