I recently updated to osx mountain lion on all my machines. when i went to install sketchbook pro it stops the install short and says you need a newer version. I believe I was using version 10 maybe? i forget. I assume the newest version works since i havent heard of anyone complain about it. Is there anyway I can get my version to work or do i basically have to purchase a second newer copy for it to work. The version i was using was fine i really dont like being forced to buy another copy.