Droid Help - Not Moving Straight

[NickiSue29]

Has anyone else had issues with their droids not moving in straight lines? We just built an Rseries droid two days ago and now that we are home we noticed that he doesn't move in a straight line when moving forward or backwards. Instead he moves in a stationary circle when the forward or back buttons are pressed. Is there a way to fix this?

 

[Grumpy by Birth]

Is there a way to fix this?

Remove the restraining bolt?