I am a MathCad user since MathCad 2000, and have upgraded via MathCad 12 and MathCad 14, while running Win2k and XP. Now I have upgraded my computer to Windows 7, but run a "virtual PC" in XP mode for many legacy programs that do not work under Windows 7. (This is a freebie feature of Windows 7, and my hardware is able to do it.) When I installed my MathCad 14 program on the "Virtual XP" machine, I was unable to activate it because the licenser said I had "exceeded the number of allowed licenses." Hey, I'm not asking for a NEW license! This is the same computer I used previously, still running the same Windows XP OS, and trying to get the same MathCad 14 running again! Gimme a break! Anders