Power supply, heat., or software bug ;-) Those would be my guesses. From: PLUG-discuss [mailto:plug-discuss-bounces@lists.phxlinux.org] On Behalf Of Michael Sent: Tuesday, August 22, 2017 4:12 PM To: PLUG Subject: Well.... I think my power-supply is going. The computer keeps shutting itself off. :( So I remembered that I had a blower for this and I blew it out and we'll see what happens. The funny thing is that it only seems to do it after I start darktable. I am guessing that it is because dt uses the cpu more. I don't know..... Well, we'll start darktable now and see what happens..... darn. it shut itself off! so this does sound like the power supply? -- :-)~MIKE~(-: