Along the lines of making sure everything is plugged in, just simply double-check ALL your connections, make sure all the cards are seated, and for the love of pete, make sure you're grounded when you touch the cards and such. 🙂 If you need help, don't be afraid to ask someone, forums, in person, phone, whatever, no one will think poorly of you (we all have to ask once in awhile, even if just to get a second opinion).