I was on a broker's forum this afternoon and left for an errand. When I logged back into my computer, I got a message : Windows had closed IE to protect my PC / prevent data to be transmitted to whatever (an outside computer) I don't remember. The computer froze, I had no other choice than restart. When I did , it said "are you sure, other persons are logged in the computer " ! I am the only user AFAIK, there is admin and my username . I tried to run Malwarebytes but could not do anything so I restarted anyway. How strange and alarming ! It restarted OK except for the fact that Matrox DualHead2Go and its software were malfunctioning. Turns out it no longer works, my computer no longer recognizes the DualHead. Regular dual extended desktop still works. I was wondering if someone hacked into my computer, could the fact that a vid card no longer worked properly indicate someone is displaying my screens from a remote PC (for doing that they would have to disable my multi monitor display somehow, does it make sense ? ) . I ran Malwarebytes and Spybot, nothing came up .