Help.. Login P/W doesnt work after upates

[joshwest]

Hey guys friends has a g4 500 he just did installed some of the updates and now onthe login screen his password is not working.. is there anyway to do a hard reset without reformating.

 

[iMeowbot]

Get out the OS X install CD or DVD, and read this.

There may be bigger problems if the password stopped working, it's probably about time to fire up Disk Utility and verify the disk too.