I am having no problems with this great generator, till 3 days ago, when all my saved svg plans suddenly look like this, no matter what i do. I has worked properly before, but not now. I have windows 10, and there has been an update since then, but it has not normally been a problem before (though with Windows, i admit anything can happen. I have restarted my computer several times with ne effect. Is anyone else having this problem?