I have several Lacie external drives and plan to buy two more now. They work fine on my XP computer.
However one of my PCs already runs windows 7 and I will soon reformat and install windows 7 on the XP machine.
I have seen from some fora that there may be compatibility issues with lacie / windows 7, and i see that windows 7 is NOT mentioned on the list of OS in some of the adverts . Hard to believe that window 7 would NOT be catered for, at least through a driver download, but am reluctant to buy without advice.