If you pasted a WMF or EMF image (from another program) onto a Prism graph or layout using Prism Windows version 6 or earlier, that object will be replaced by a red object when you open the file with Prism Mac. With older versions, there is one problem.The Windows and Mac versions of Prism use the same file format, and you can go back and forth between Prism 9 Win and Mac without any special conversion.