I can't export an image I made in Pixelmator. No matter where on my hard drive I try to save it, I get the message I've tried saving on my Desktop and in my Pictures folder. I can save the raw PXM file anywhere I want without a problem, but as soon as I try to export it seems to think I don't have permission to write to my own folders. No other programs (Illustrator, Photoshop, etc) are exhibiting this problem. Just Pixelmator, and I can't find any reference to the problem when I Googled around for a bit. Any ideas?