I purchased last night. Download started. I closed my MBP (early 2011). Woke up today and cannot restart the download. It doesn't show in the launchpad. I go into app store and click purchase, I get a prompt saying that I have already paid and to hit OK to start the download for free. Once I do that absolutely nothing happens. I have tried to restart app store, restart the computer, everything. So frustrating. Can anyone help?