I'm thinking get yourself some double bean burritos, a bunch of deviled eggs, wash it down with cheap beer, and hang out in the blind for a spell. Then it won't smell like rubber.
Seriously though, Did you notice if there is a difference between having it in the sun versus having it in the shade? A buddy of mine kept his pop-up blind in the sun and got a strong rubber/chemical smell out of it, but when he relocated it into the shade the smell decreased noticibly. That shaded blind helped a handicapped friend of ours bag a decent buck last year. Good luck. I hope you get it right.
Luck Counts, good or bad