I'm using ScreenCaptureGUI to get a screen grab during DVD playback. It's supposed to save the screen grab as a PDF file. However, the folder in which you save the PDF must have write permissions enabled. I'm the only user on the PB (and thus the admin), so I would think that almost any folder would be available for me to dump the PDF in. However, whenever I go to open the file in Preview, it comes up with an error dialog box saying it can't open the file. What am I doing wrong? Is there a better app that I could be using for this?