<rant> I, too, come from the days of mag tapes, punch cards and floppy discs the size of dinner plates but the issue here is not that LR5 WON'T run on Vista 64bit, it's that the coders wrote in a switch that asks: "Is operating system Windows 7 or greater?" Yes or no. As mentioned elsewhere, to upgrade a computer that is used daily for business is not to be taken lightly. Printer drivers, (a BIGGIE!) scanner drivers and software, display calibration, ICC profiles and bloated UI are some of the genuine concerns I have in addition to the cost outlay. Now, if I didn't have a 64bit platform I could justify the upgrade. But to upgrade just because Bill Gates is starving to death... Don't get me started. </rant>