What would cause the "SVN Move versioned files here" command with Tortoise SVN to fail with the error "Unable to lock '', Please execute cleanup command", even after having executed the cleanup command?
I've had problems with the Tortoise move facility too (apart from it being difficult to accomplish with a touchpad) and have switched to using the command line svn move command when I need to move something.
Edit: Tortoise doesn't come with a command-line client, so I use that from www.sliksvn.com.