This is not a major issue (I think?) but even after deleting the default twentyten and twentyeleven themes from the server, I'm still seeing an Update notice in the admin.
It just says :
You have version installed. Update to 1.4.
I can't update it anyway, because the files are not on the server, so what is causing this message to appear? It's only happening on one WP installation (I've installed countless WP sites) and I've double checked the files, there is only my custom theme and the index.php file in the /themes directory.