Computer shuts itself down, screensaver activates although system preferences set...

[vegas-steven]

ok, this is strange.

my 17 inch imac (first gen core2 duo) shuts itself down for no reason, the power saver has it set to NEVER put the system to sleep, however this is just shutting down, not sleeping.

also, my screensaver activates even though i have it set not to. this doesnt happen if there is user imput, but only if the system sits still...

what gives?
i am going out of my mind here.

 

[filmweaver]

Computer shutting off.

ok, this is strange.

my 17 inch imac (first gen core2 duo) shuts itself down for no reason, the power saver has it set to NEVER put the system to sleep, however this is just shutting down, not sleeping.

also, my screensaver activates even though i have it set not to. this doesnt happen if there is user imput, but only if the system sits still...

what gives?
i am going out of my mind here.

Try going to Settings>Desktop & screensaver> Screensaver>Hot Corners.
You may have hot corners enabled to set those items, and sometimes it can be like it's acting weird if your not aware of this.