I actually did at the beginning (it kept telling me to open or save it). When I pressed open, it wouldn't really open, and when I pressed save, another version of the download would appear. I'm not sure if this is your exact case, but try to make sure you download the right one out of the two, because later when I tried the other one, that one worked for me. Though I'm not sure if this is your exact problem, I hope I could help! :)