I have seen this problem posted on numerous places on the web with no one able to solve it. I thought someone here might be able to help: I enable Internet Sharing on my Mac which means the computer itself sends out a wireless signal. Every handheld device I have ever had connected easily to the ad hoc network, but not the G1. It says the signal is excellent, but it either can't obtain the IP address or connects fine, yet says the signal is too weak for me to use the Internet. Any idea what is going on? Thanks.