I have a month-old Desire HD which has worked fine so far. But I tried to instal HTC Sync on my laptop running Vista SP2 and ran into problems. After downloading and installing Sync (3.0.5517) from HTC.com, I'm repeatedly told that ADB installation has failed (see screen clip below). Nothing I do can find this driver - where is it? Why isn't it included with HTC Sync? And what is it anyway? Thanks for any pointers here - but I can't speak programming languages and I won't be able to handle any highly technical stuff. This ought to be really simple, shouldn't it?