So I play in the Valve Index and have been playing very nicely until just now. I played last night and loaded a Cutter with LTD's and waited until I found a good price today to sell them. The problem happened immediately and no trouble shooting has helped me so far. When I get to the main menu and go to select solo play, the cursor moves very fast from right to left. It's impossible to control and makes the game unplayable as it makes buying and selling anything way too difficult to manage. I didn't change any settings in the game and did nothing different at all from last night, so I have no clue what's causing this or how to stop it, but until I can get it to stop, this game is over for me. If anyone knows what's happening and how to fix it, I'd greatly appreciate it.