Help I just signed up for the trial but I cannot get back to my mac to work. i tried to change settings in airport utility but it keeps saying my dhcp begginning and ending addresses are different. Now what got me to that point was MobileMe saying i needed to enable NAT. I just want to be able to access my files from my windows computers. WHy is it so hard? Also, random question. I have an older model airport express.....i know my mbp(2 weeks) is wireless n enabled but its not connected that way. Does that mean the express is only bg enabled?