Mac Pro 5,1 I installed Mojave on my Mac Pro, it runs fine for a few hours and sometimes longer then bam! It just becomes unresponsive, everything takes ages to do anything. eg: You a right click then 15+ seconds later the menu shows, move a window same things, has anyone else had this issue? Activity Monitors shows nothing unusual, nothing resource heavy. (Closing all running software does nothing) It was running fine under Sierra for years without any issues. You have to force a reboot to restart the system, then it works for a number of hours then does the same. To no avail, I have tried the following: New, newer GPU Reinstalling Mojave (Which is a pain in the butt) Different SSD's Killing all running apps/software Unplugging all USB external drives My specs are: Mac Pro 5,1 (2010) Dual Xeon X5690 4x SSD's RAID0 (HFS+) 32GB RAM 1333Mhz RX 570 - 4GB 4k Monitor Recommendations, anyone else having the same issue? I like Mojave, but above!