Don't know if it is same problem, but when I had similar happen before it was because I had joystick plugged in. Quit the game, unplug the joystick, restart the game.Suddenly, this game is developing bugs. The mouse pointer moves all by itself all around the game. Just games DL from here. HTML games work fine. So do my Steam and GoG games. I have done a restore, updated all drivers, cleaned up corrupted files, and switched to 4 different mice, including a hardwired one. I'm flummoxed. Any thoughts on what I can check?