Click To Continue Bugged out

will my ATI radeon hd 5670 video card work for the walking dead?

I'm getting a bug that when it asks me "click to continue" the game bugs out graphically and doesn't even show the login box, just the big THE WALKING DEAD logo in the middle and what seems to be grass below it the flashes on and off very fast.

I'd REALLY like some help with this seeing as I just payed for the game and can't play it now :(
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