If anyone else is pulling up old archived tax records like me and using TrueCrypt to store it all, you might find doing it on a Mac PowerPC computer gives errors when trying to mount your .tc volume. Mine said I had an incompatible version of MacFUSE. I found in System Preferences that I was running the 2.1.5 beta. By removing it, unchecking "Show Beta Versions" and re-installing with 2.0.3, I could get my old, encrypted tax documents to mount.