Hello there my fellow Mac Pro users. I have a MacPro 4,1>5,1 2X6-core xeon cpu, with 128GB ram and a gtx 980Ti running High Sierra (18.104.22.168.0 bios boot rom). It has four internal HDD and three external HDD attached vie a USB 3.0 pci-e card. Anyways, I've been having an issue where the MacPro will suddenly log me off for some reason. Then, I would have to log back on to get back into the desktop again. I'm not sure if its a software or hardware issue at this point. Anybody has any clue as to what is causing this?