I tried your numbers and it works exactly as expected for me. The first hole is at x=.375, then it moves across in x, then up one and back to X .375.
Can you post the code you get, maybe I can get a clue from that.
Also,are you sure you are using the latest version- it should be the one that has the material screen with the dialog box, not all the individual material buttons. There should be a V 2/74 in the upper right of the first screen.