Extruder reversed

Guys,
I have a problem with my extruder and reverse settings in my pronterface. When I try to extrude the PLA, it start to pull it out from the extruder and when I click 'reverse' it extrudes the PLA. To make it simple, it likes both function is swapped. So, is there any way that I can make sure that both 'extrude' and 'reverse' settings works fine in which when I asks the machine to extrude, it extrudes and when I click 'reverse' it reverses.

Ramps 1.4
Prusa Mendel i2
Sprinter

Thanks

Make sure your extruder stepper motor is wired up correctly. If it is, you can either reverse it in the firmware or reverse the wiring. Guide to stepper wiring (including reversing).

Quote
3dkarma
Make sure your extruder stepper motor is wired up correctly. If it is, you can either reverse it in the firmware or reverse the wiring. Guide to stepper wiring (including reversing).

Thanks, works fine.