I just bought a MacBook Air and was having a lot of trouble with Popcorn 3. I upgraded to Popcorn 4 but cannot get my shows to transfer from my tivo. It says it is starting but then changes to a yellow check mark and says "waiting" forever. I tried roxio support to no avail. He had me reinstall the software which didn't work. Then he had me look for a bunch of files in my library that were not there and then do an empty secure trash. I am beyond frustrated since I had to also buy a super drive in order to install popcorn 4 and now it is not working. Can anyone help?