Well, let say I'm in the middle of something and then just pop's up an error message
[https://www.google.ca/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&docid=SNFpM0epMHRXPM&tbnid=uloaFpUJ_l7KGM:&ved=0CAUQjRw&url=http%3A%2F%2Fsupport.apple.com%2Fkb%2Fts3742&ei=Pag8U47XDZKu2gX3mYDABQ&bvm=bv.63934634,d.d2k&psig=AFQjCNHj_R46bOx4JgiIT6L4EHmYPMViuw&ust=1396570552603057]
Then I Don't have any option other then just turn off the Mac Mini,
-It happens when browsing or just by having the Mac Mini Turn On.
-The other thing that I notice, (not sure if is for same reason) it goes on StandBy Mode and when trying to wake it up, i does not responde so I have to turn it Off.