Hopefully someone else has had this issue and solved it because its very annoying. Under Vista I used to be able to FTP and get 600kB/s from 2 sessions. On XP this was slightly slower at about 550kB/s. On Win 7 I'm lucky to get 300kB/s on a transfer of the same file. I've actually restored my Vista image and it still gets 600kB/s. Appears that there is something very wrong with Win 7 and GA DS3 v3.3 adapters by the looks. I've also tried disabling auto tuning and updating to the latest marvel driver off their site for win7 but transfer speeds are still less than 50% of vista and xp. Any idea's?