Joe's dashboard

I'm trying to overwrite a playlist and it is not working. It will let me go through the action of overwriting it, but does not actually overwrite it. This is annoying when I want to add a song to a playlist because I have to save it as something else. I've just been adding a number to the end of it and then deleting the original. This is annoying though.

Please Grooveshark fix this!!!!