Hello...Im having a bit of a problem..I have fully assembled my geeetech i3 pro 3d printer..I switched the machine on and the lcd comes on,but does not display anthing..so I figured I had to install drivers and software..i did that..But I keep getting this message that I need a Digital Signature Requirement..I think I got lost in the process of installing and reinstalling software..is there no easier way to get my lcd printer to work and display.Please help..