The reason for selecting 12 was going to be price. I could get a version of 12 Pro Suite for around 450.
My son built me a different computer (this one has an 8 core processor vs quad core and a step up on the video card NVIDIA 750TI from 650).
I just tried exact same vid with same trial verson of pro 12 and exact same preference settings. Vid previewed fine. This tells my feeble brain that somehow Pro 12 requires more processing power than Pro 10 and MS 11.
Does anyone know if its the CPU or the graphics card that is involved in previewing a vid? (it would stutter in trimmer window too)
I’m taking your advice and trying MS 13 Platinum. With the new machine, so I won’t be able to compare it to my old one.
Thanks for the help!