Since Migration Assistant blew up while moving to my new Mac, I've had continuing problems with permissions throughout the system.
I believe the problem is that the Apps can't save into my Library. I have only two permissions across my entire Home folder tree, me read-write and everyone read-only. I seem to be the owner for every file.
Can someone out there poke about in their Library and similar folders and see if this is the same? I suspect that either a group needs write permission, or that some of the files are not supposed to be owned by me.