Just today, Lightroom is causing my computer to crash. It was working, tnen it flickered and the whole screen went white. The computer tries to restart, but gets halfway then restarts again. I had to force quit. One time I got it to boot up, quit Lightroom, and other software worked fine (Safari and Email.). When I opened Lightroom again, it worked for a few minutes then crashed the system. The only thing that comes to mind is - I installed an El Capitan (on a Mac) update related to Safari, but Safari was working. Now I can't get the computer to boot up at all. It just keeps trying to restart. I have no way to close Lightroom. Any suggestions out there?
Correction - El Capitan update not related to Safari. Security.
Sounds like a hardware problem.