i have solved my render tiles problem by doing a batch render as instrcuted to do so by my lecturer but now i have a new problem,having saved the file as both a maya tif and a jpeg in the render globals,the file won't open,i know it has worked as it is a large file but for some reason it says something like

" could not open batchrender.jpg because an invalid JPEG marker
type is found "

Darrska