I'm probably missing something but I see no way to add cards to my inventory. I've tried looking on my profile and searching for individual cards / decks and see no way to do this. Obviously there's a way to do it that I'm missing...can someone help? Thanks.

You have to edit your profile and check off the games that you play. Until then, you won't have an inventory, be able to create decks, or anything else. I remember having that problem when I first set up my account, too.

Here is a link describing how to edit your profile if you can't find it. http://deckbox.org/forum/viewtopic.php?id=986

Got it. Thanks!