Nvidia and FS2004 problems definately driver (fix, sort of)

Having contended with nvidia problems with fs2004 (6800GT and 7900gt) I can definately say this is a driver issue.When i had the 6800GT i could only get AA working with no ghosting, freezes and black box images if i used driver ver 61.77, anything after that and it was dreadful, resulting in no AA.Anyway got the 7900GT, exactly the same problems, this time an old driver wouldn't work so it was back to no AA. So I thought to myself what if i alter the inf from the 61 drivers to include the 7900GT. (not sure if i should have used new inf, but used old and included 7900GT)Installed old driver on 7900GT (61.77) and guess what AA works fine with no ghosting, no black box images etc. I can use sqwuawk box and fspassengers on the screen with no freezes or ghosting images. Sim looks so much better but its an old driver, so not sure what to do, use the new driver and have no AA or stick with the old one?