Help! My wife's Imac-mid 2009, running High Sierra. So it runs slow..I understand that issue (hard drive). My mid 2010 runs just fine. However, she now wants to use Imovie and the 9.06 version is too old and her computer won't download 10.1.14. people recommend 10.1.8 for her system. However, I cannot find a downloadable version anywhere! Seems like you can get 9.06 or earlier, or 10.1.14, that's your choices. Any help would be appreciated. TIA.