I just installed the EZABL last night and everything is working great except one thing. When the printer goes through the startup prior to the print and it checks a grid pattern on the build plate, the grid is not centered. In other words, it checks on the very edge of the left side of the bed. It is like the grid is not centered and should be shifted to the right. I'm not sure what I need to do to make the correction. Any help is appreciated.