Ok, I'm not sure what I'm doing wrong. I bought the A3 pro, this is my first laser so bear with me. I assembled the unit now I am trying to download EleksCAM v3.1. I have downloaded EleksCAM, Framework 4.0, VC windows 32bits, and VC windows 64bits several times but I still cannot open any of it; I get "unknown error" every time. Anyone else have this issue or suggestions for me?