I have someone playing with me - in terms of

An unwanted computer guest.

This happened back in 2005 - I would be playing Solitaire while waiting for the computer to bring up a large program like Photoshop.

And someone would flip a card on the deck. Or sometimes the cursor would get pulled up to the far most left hand corner of the screen.

Well, we moved away from that place, and when we set up the computers in the new house, the "guest" was gone.

but now it is back. For instance - yesterday, while playing Solitaire, I could have chosen the King from pile 3 to put over in the blank spot, or the King from pile four - and the "Guest" chose King from pile 3. My hand wasn't even on the keyboard!

What is happening? We use Avast for our program security and haven't had a virus or trojan warning in over 60 days. The activity involving the cursor being pulled to far upper left hand of the screen occurs more often that the person "helping" me play Solitaire?

What should I do?

Usually chili sauce or similar sticking a key partially down. :)