A couple months ago, I migrated my text rpg Carnage Blender to a new server, with Ubuntu 6.06 on the new box. For an unknown reason, ftstrpnm on the new box wouldn't generate the pngs I used in my captchas. It was easier to just check in the images from the old machine into the my svn repository than debug this, so I did. The downside was that my working copy on my Windows laptop stopped being able to update from the repository. It would get to "words/con.png," and error out. Google, for once, didn't turn up anything useful. Today I got motivated. I tried all kinds of ways to get this to work. A new checkout had the same problem on Windows, but on Linux worked fine. The svn command line client for windows didn't work any better than Tortoise -- instead of "Error: Can't open file '...words\.svn\text-base\con.png.svn-base': Access is denied", it barfed con.png to stdout, and died. This was a clue, but I didn't realize that until...