for those who can't adjust their needle positions to fix the problem, try this:
using your ruler, draw a straight line on a piece of paper.
then use the ruler to cut the paper 1/4" from the line (imitation seam allowance).
take the paper to your machine. stick the needle into the center of the line and line up the paper so it's feeding straight into the machine.
make a mark on the machine bed at the edge of the paper.
aline your fabric with that mark when feeding it into the machine.