Tank drive problems

My team and I are having a problem with our tank drive program. We are use logitect playstation looking controllers. The two axis were set as 2(y-axis) and axis 4. For some strange reason it stop working. Some is preventing us from turning. I noticed that one stick on the controller is makling the robot to move foward. With tank drive i thought that the just moving one joystick will make only one certain side move… CAN ANY ANYONE HELP ? ? ?

Make sure that the motors are controlled by different axis values. Make sure that you havnt wired the same value. If you upload a VI I will be glad to review it.

your description sounds like arcade drive. verify that you have it set to tank and not arcade drive.

Might one side not be working at all? A skid-steer robot will generally go straight if only one side is powered.