It could also be that your screen is not calibrate when you open your
software. If there is a grid, measure it to see if they sqaures are indeed
square. Hope it helps
I think she is talking about the width of the stitching - with the columns being a different size rather than the shape being skewiff.
Is the design very large? Hard to suggest anything without seeing the actual design and who digitized it.
This has to do with pull compensation,,,depending on the type of fabric you are using,,,and stabilizer it will do this.
Not sure how to fix after the fact.