MN-730 Problem

I just got SBC DSL, have a Netgear 802.11g router, and
have MN-730s in my 3 Windows ME PCs. My problem is the
same for all 3 PCs, I have to use MBNU to reconnect to the
wireless network whenever I start up the PCs. When it is
reconnected, everything works great. After the PC starts
up, ipconfig shows the correct DHCP settings from the
router. All settings for the 730s match up, SSID,
channel, mode, etc. I am using the latest drivers. I
want to be able to surf the Internet without going through
the MBNU every time. What do I need to do to get the
settings to stick? Leaving the PC on is not an option.
Thanks.