I have several versions of Powerpoint on several different Macs. I notice that on Powerpoint 2007, one particular image in a file I have is rendered poorly. Sort of pixellated. The image looks great on more recent Powerpoint versions. This is on a file that I was sent, and the person who produced it doesn't remember what kind of graphic file was used for that image.


What graphic file formats are rendered poorly on PP2007 that are rendered well on later versions?


I've never seen anything like this before.