I too have had homelink act up. It was perfect for a long while after receiving my car (~7 months) and then in the past ~3 months, it often required multiple attempts before it would open/close the garage. It seemed to be worse if the rear of the car was facing the garage, and better the other way around.
Well, it seems like v7 may have addressed the issue for me. The issue itself was somewhat intermittent (would act up worse sometimes compared to other times), but for the few times i've used homelink since updating yesterday morning, it has worked first time every time. Fingers crossed it stays working, and I hope others get the same benefit from the update.