I am getting the same problem, but with all my entries, when i select a card the screen to the right is blank although it was working before.
I, too, have the problem of a blank card. I have just installed and started using IV, but it doesn't seem to be doing anything.

I have IE integration set, and the logon fields show color, but nothing shows up in the card field. I have manually entered logon information, and selected "Finish" to save, but still, the card is blank.

I do not, however, have any problems with the master password working incorrectly, nor have any of the cards ever worked. Not sure what the problem is.
Any help would be greatly appreciated.