Thanks! Nope. It's been used on no less than 3 desktops (serial and USB). If I pull the vinyl out and put the pen in, and plot an IDENTICAL image, once at a speed of 80 (everything works fine), and then at a speed of 30 (it'll only plot 1/2 the image with lines running through the image at oblique angles), I get drastically different results. I get similar results with identical Large v.s. Small images. And the file is only 37kb, with streamlined nodes.
The reason I use a pen for this test is because that's what was suggested by support to reduce static. I happen to have an ionizer running within 5 ft of the cutter. I don't believe static is an issue because of the consistency of the errors. I've tried this with SBE and WinPCSign with similar results as well. Most of my jobs are small, BUT when I try a larger cut, the vinyl is usually wasted...