I do a lot of charity quilting.. so when i see a bargain on a solid... i buy a big bunch... i'm not as fussy as most.. i just need a color to help me...
Hard to explain because of the software differences.. but with my Designer 1... look for something in the toolbar that says "Merge"... that may help...
I agree with all the tips from Diana and Denise, especially about the needle size and having it at it's highest point. You can't depend on the needle...