GRBL Controller & Universal Gcode Sender

I just finished building OX build CNC, and am new to the CNC world. I tried using both software and my problems are: Universal Gcode Sender- First: When I jog the motors they move in the right direction, but when I load a test file and run it, the CNC moves to the back right corner and starts from there.
Second: Using the GRLB Controller - When I try to jog it I get an error undefined feed rate. How do I fix this? What should the GRBL setting be, and is there some information that explains the...

GRBL Controller & Universal Gcode Sender