After installing Windows 7 (64-bit) Professional Service Pack 1, the latest Detector Tools would not work. I spoke with Escort support today, and they confirmed that there is a driver problem with SP-1. Although they are a licensed partner with M$FT and are supposed to be kept compatible, the problem was created by SP-1. I was told M$FT is working on the problem and Escort will send an email to registered users when it is fixed. It will not involve changing Detector Tools app. I tried running in XP compatibility mode, uninstalling and reinstalling to no avail. It's a Windows 7 driver issue. For now, I use another computer running either Vista or XP to do my updates.