[quote name='Darkwormer']They are still on your account. Click on "My DMR" on the main page after logging in, then under the "My Points" Section, click on "Unlocked Offers". Should be there, under "You have earned the following coupon(s)". Click on the link for the coupon to print. As long as it has not printed yet, you can print it out. Since you get 2 per computer, you should still have one you can print. This is where you would go to redeem you free Cars 2 movie cash as well.[/QUOTE]
It appears to think that installing the coupon printer equates to having printed the coupon, because i got this error as well, and used the process you mentioned to try and bypass the error. I ended up calling DMR about it, and they said I could have one mailed to me for free that would have an extended expiration date on it. Now I just need to raincheck a copy of The Incredibles, and I'm golden.