I am now a happy camper! I have watched several you tube and reread some of the manual. I can now piece half square triangles and thicker seams without pulling my hair out. Still like the simplicity of the 5mm and straight stitch machines but can now piece on my 9mm Bernina. And I do love some of the additional features on the 590 such as being able to "put the machine to sleep" without having to reset my settings when I return.
And Thanks everyone for your suggestions. You are the greatest!