[Levansic]

Outward or inward is a bit confusing, try looking directly at the wheels from the outside of the robot, while the robot is elevated and not touching the floor. If you crank the joystick clockwise, all of the wheels should appear to turn counter-clockwise, when viewed from the outside. Take note of the ones that are going clockwise.

Go into begin.vi, and right-click on the terminal on the left side of the 4-motor drive open vi, that matches the inversion for the motors which spin clockwise. Click on the new boolean constant to turn it from false to true. Do this for all motors that are turning the wrong way.

If you have trouble finding the motor inversion terminals (which likely are unconnected), use Control-H to bring up the context-sensitive help, and mouse over the drive open vi.

All of this assumes that your motors are called in the correct position. In most cases, you will likely have to invert two of the four motors.