Vsn 8 system tester has both logic and software bugs, as I found to my considerable cost and frustration. Some months ago, after weeks of constant e-mails and phone calls to Equis in the States, I finally got their technical manager to admit as much. I have yards of e-mails to prove it. Not that his admission did any good because they have no intention of issuing “fixes”. So much for customer service. The best you can hope for is that the next release includes the necessary corrections. Their software used to be good, and I used to recommend it, but no longer.