I was reluctant to purchase another Arturia product after using the sketch Mini Mg and Brass, which didn't work AT ALL!! However, I was desperate to replace Pro 53 which doesn't work in 64 bit. Well predictably, my fears have been realized. Prophet V simply does not work-it crashes not only itself when I attempt to edit presets, it crashes my host software (Digital Performer) as well. I don't understand how this company stays in business selling merchandise that they clearly know is faulty. I think they need to be put out of business. Class action suit seems about right. Anyone else agree?