Auto logout when screensaver kicks-in?
Under Yosemite 10.10.5 on a MacBook Pro, it now seems that as my screensaver kicks-in it initiates an auto-logout? This does cause issues as it halts, for example, number crunching, ongoing tasks such as Mathematica and (some at least) downloads via Safari. I have tried, what to me, are the obvious sources for selecting/deselecting such an option but without success.
As ever, any help, much appreciated.
David
MacBook Pro (Retina, 15-inch, Mid 2014), OS X Yosemite (10.10.3)