After installing AirPort version 4.1 and restarting, the OS won't load. It hangs at the apple logo. What can I do?

try booting into safe mode, by holding down the shift key, reset open frimware, take the keyboard off and reset the pmu, if that doesn;t work call apple
www.apple.com/support
to look up the how to stuff
or if alesle fails out the os disc in a boot to it holding down the "c" and then archvie and instal, not persvering user settings
but booting into safe mode should get you going then go into system pers and the accounts and login items and delete everthing that start up
let me know if this helps, my email is b101875@aol.com

jel

Hi is there anyway to startup an ibook G4
without it going through network
initialization. Because it just speeds
through it and my menu bar never loads
as it is searching for an airport
connection. I want to disable that so it
doesn't look for airport at all during
startup. But I can't even get to my menu
bar since the colored rotating circle never
stops. Help please. :(

Take the card out and/or clean out the cache folders inside
the 'Library' folders

This should do it. Dodgy DHCP and DNS server settings can
cause this problem. and more often than not do.