OP here. I also just tried to do a fresh download by going to installturbotax.com. When I put in my License code there it gave two choices, MAC or Windows. But the Windows was grayed out, and only allowed MAC to be selected. That obviously won't work, as I have a PC. I However, what is even more strange is that the download link, that came with the upgrade email, only gives a download choice of Windows, not MAC. So, I am still stuck.
