You should: 1. Set your mailer to send "plain ascii text" as well (in addition to HTML). 2. Read VTK messages more carefully. In this case, use of the "OutputAlwaysCenteredOnInput" variable (in vtkImageReslice) is being deprecated. -- charl p. botha | computer graphics and cad/cam http://cpbotha.net/ | http://www.cg.its.tudelft.nl/