i have a bunch of iphone apps that supposedly sync with the mac. they all claim to be able to sync over an ad-hoc network. so i create a network on the mac and connect to it on the phone. nothing works. i assume this is because DHCP doesn't work. so i assign manual IPs to the mac and the phone and mac. still doesn't work. even if it did, i'd have to redo this on both devices every time i wanted to sync. is there a way to get DHCP working with an ad-hoc network?