thats odd, they do really well for me and i do nothing special.
how did it die on you? did the leaves yellow or dry up or what?
i just keep em planted in miracle grow orchid mix and keep the cups filled as much as i can (sometimes they go empty, but not often), and add water to the soil when it dries out. they are in a south facing window.
i can send you another one to replace the dead one, but first try and save the second so you know youve fixed the issue.
Eheim Pimp #296
Canon Pimp #67