What happened was that she was saving the assingment on her usb key as she did it, then she copied a version from her desktop which had nothing in it, put it on the USB key, and thus over-wrote it.
Any ideas on how to fix that ? I am no MAC guru thats for sure. Some ideas that did cross my head were
1 - File recovery program. Although since the file was over-written rather than deleted probably not feasible.
2 - System restore. How do you do this in a MAC ? Would that show the previous version that was on a USB key though ? Unlikely I feel.
3 - Maybe there is a temp file of the previous version saved by Powerpoint automatically ? How would I go about finding and restoring it ?
Or is it doomed ?