I don't know if it is sleep related or not, but I'm thinking it is not. I have had this happen when I set my computer to never sleep, and I have had it happen long after I have had my computer set to sleep.
Sometimes I come back to my computer and it is shut down.
This is the second time I have installed Kakewalk on this brand new hackintosh. To give you a little history. The first time I did it, I built the USB drive and installed it without the actual PDF help guide. I messed around in the bios until I could install to the internal hard drive by tuning on ACHI mode (or whatever it was called) but heaven knows how much I screwed up in the settings in the process. It kept doing a lot of funky stuff for a week before I decided to format the drive and give it a second go (including this shut-down stuff). That's when I realized there was a bios setup in the attached pdf and (among other things) set my bios to 64bit. It's amazing what a difference following the directions makes. In the end, all of the other weirdness is pretty much gone with the exception of the spontaneous shut-down.
Everything else seems to be working perfectly. Has anyone else had this issue?
I appreciate the pm projectX. I tried to reply but it says I cannot since I am too new here.
My cpu's temp has never been higher than 55˚C. I use Temperature Monitor. I wondered if that was it, but you would think that just sitting in sleep mode would not add near the strain that heavy rendering does. I am fairly certain that temperature is not the issue here.