How to delete old draft decks!

Hi !
Is there a way to manually remove old draft decks? I've tried to use the button on Limited version, but it simply doesn't work.
I use Windows Vista, by the way.
Many thanks!
Cheers
Is there a way to manually remove old draft decks? I've tried to use the button on Limited version, but it simply doesn't work.
I use Windows Vista, by the way.
Many thanks!
Cheers