So that got me to thinking, I do both overclock my CPU and GPU because I want my hardware to die and early death... but that's generally what causes GPU and CPU crashes. So I lowered the clock rates and it's stable even with acceleration on. But that begs the question, what thing is broken in Serifs software that they cause problems when even Prime95 suggests a stable overclock? In my experience it's usually not a supported problem if it only happens to overclocked systems. But out of a library of 50 GPU intensive games (some severely under optimized), 3 DAWs, 2 Video editing programs, and Blender to name a few, nothing has had this problem save for certain file types rendered in Sony Vegas. That said my solution for now is to deal with a slight rise in render times I guess. I may have faulty hardware as well, so It's not easy to pin down with custom hardware settings. If Affinity was open source I could probably track down the problem and then be able to verify what might be wrong with my hardware if that's the case. Either way, it kinda works... but it's very slow, and that's just something it's always been. It'll never be Photoshop... but it'll be affordable and mine.