I haven't played very much for a few months and just started again. So, I'm not sure what the cause of this may be but now, my character will often keep running even after I release the movement keys. Sometimes I can stop it by moving in the opposite direction. Sometimes I can't until I restart the client. I can toggle between run and walk but movement always continues and always in one (albeit not a particular) direction. I don't know if any of this is relevant but I have auto-run enabled. It seems to happen more often when I'm mounted and will carry over to running/walking after dismounting. It may only start when mounted. I'm not sure. I've also noticed that last time this happened, I was automatically running to the right. When I logged out, the cursor on the login screen was pointing to the right rather than its normal isometric-like angle. I'm using the EC on Atlantic.