It's very strange. What version of PD are you using?
Please, try to open text documents from Mac with simple Windows application, such as Notepad and tell me about your results.
And of course, you know, Global File Sharing option must be on, to let Windows access files on Mac (you can experiment with sharing). Also, it may be some kind of Mac permitions problem, so try to open other documents from other locations.
Last edited: May 18, 2007