I have been playing singleplayer with no problem, but I tried multiplayer last night and I found many problems that others in the game did not have. I could not right click to cancel out of a screen, I could not press escape to cancel out of a screen or to open the game options. I also found that when I queued a construction for a system it would place it at the top of the list and not at the bottom, so they would construct themselves in reverse order.