We received Pet Vet this past Christmas. Like the software engineer that also could not get this running on his three machines, we couldn't get it to run on our three machines. We have the latest patches and video card updates, new machines and old machines. My wife teaches phd classes in computer science. I do AutoCAd work. We contacted the company and received no response. We spent a lot of time trying to get this to work. My daughter was very excited and is now disapointed. I would recommend that you avoid this product.