If that don't help, the zip file may have gotten corrupted. Go to your My Artist Page-My Purchases and see if you can download it again. You will find your My Artist page on the sidebar and your My Purchases in the list on the right hand side top of page. If you already use the two downloads up and can't download it. Goto Store Contacts on the sidebar and let them know you need to have that product reset so you can download it again.