The revision graph shows copies/moves. If you show the graph for the repo root, there's nothing to show. And if the path you show the graph for has never been copied/moved (i.e., no branch/tag was created) then the graph is empty as well.
Please use the users forum for questions like this. Stefan -- You received this message because you are subscribed to the Google Groups "TortoiseSVN-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tortoisesvn-dev/5ea30e5e-fa8d-43be-99a3-3eef7cb40048%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

