I've just set up my MBA, right out of the box - everything is going well apart from it take ages to copy files from my G5 to the MBA, over my WiFi connection. A 33.6MB file has just taken 45 mins!!!! I'm doing nothing differently from when I used my very old (5 years) G4 PowerBook to transfer content. As a quick test, I've just transferred the same file to that lap top in about 15 seconds. Has anyone else had the same problem or know of a fix?