ok...this is really weird now. Yesterday morning I woke up, and I turned on the mr8 just for the heck of it, and it started up fine (much rejoicing). Then just a few minutes ago, after I read your post, I started it up, and it gave me "Warning, Card Error! Error 03" (as opposed to error 02, which is the error I got in the first place). Then I turned it off, and turned it back on. "Warning, Card Error! Error 02". I was confused, and I turned it off and on again just to see what it would do. That time it started up fine. I'm thinking that I just need to start it up a few times to get it to work whenever it does that, but I really don't want to have to do that whenever I need it.
EDIT: Ok, I just figured it out. It does the error 03 -> error 02 -> startup thing whenever I format the card on the mr8. I just re-formatted it, and it did the exact same thing. Well, atleast I know when it's going to do it as opposed to having it do it at random, important times.