We just purchased a demo Mach 5 from a local Neopost dealer that I've been working on getting setup for some envelope printing. Everything seems to be working great with the exception of about a 1/2" margin down the left side of the paper (if holding an 8.5 x 11 upright). I've been through the settings in the print driver and cannot seem to find a way to reduce that margin more than 3mm through adjustments in the driver. This margin happens no matter what I am printing from whether it's a PDF, web, Excel, Word. Everything looks good in the print preview but the finished product is shifted over. I feel like I'm missing something obvious but I am new to this printer and was wondering if any Mach 5 users might be able to shed some light? Thanks!