No, i installed OD on both machines years ago and the software updated without any problems, until the new activation process came. The first update i did was Fences 2 and after updating it on the second computer, i got the message, that its already activated on another one, so i bought a second license. Yesterday there was an update of Start8 and before i install it on the second machine and have to buy it stand-alone, i wanted to have a second OD license (what i wanted years ago, where they say one license per e-mail). Otherwise i have to buy each program in stand-alone version and thats a little expensive, if you know what i mean...