I thought I'd throw this one out here to see if anyone's got any advice.

My PS2's started acting up. The symptoms:

1. I have two memory cards -- one for my saved games, one for Jen's. With either memory card in the first slot, the PS2 refuses to boot up from a game disc. It'll start, and then I'm left with a blank screen. If I take the memory card out, the game will start normally. If I then put the card back in, I can load my saved games successfully.
2. Jen's memory card claims that it's unformatted (it might be -- this is from new), but when I try to format it, it never finishes. I've left it for over an hour, and no progress.

Is my PS2 dead? Do I need a new one?