I had a bit of a control issue when I booted up Portal 2 this morning. This is what I sent to Steam Support:
"Today, I launched Portal 2 on my computer for the first time. I am using the Keyboard and Mouse.
I started Single Player, but as soon as I gained control at the beginning, my aim went straight up and started spinning. Movement controls were working, but my aim was stuck looking up at the ceiling spinning in circles, even when I wasn't touching any controls. I tried changing the configuration in the Keyboard/Mouse section of the Options menu, but this made no difference. I restarted my computer and launched the game again, but the problem was still there. I have not had this problem with any other games that I have purchased on my Steam account.
At one point, the game told me how to toggle zoom and the icon on screen said 'JOY6'. This leads me to believe that the game was trying to detect a gamepad or joystick, which makes no sense, as there are no gamepads or joysticks set up or plugged in to my computer. I only have a Keyboard and Mouse set up.
Is this likely to be a problem with the game itself, or is it a problem with my control input? If it is a problem with my control input, could you please advise me on what I could do to fix this problem?
Thank you for any help you can provide."
Anybody have any ideas on what's going on here?