System upgrade agetty issue

Question

I executed a complete system upgrade yesterday.  Now when I attempt to login in (through the terminal, not graphically) it allows me to enter my username and then instead of prompting for a password it immediately reports "incorrect password" about four times and the returns to the login prompt again.  I have no idea where to begin debugging this and would appreciate some input.
Thank you,
Brendan

Answer 1

Thank you so much for the quick reply! Here is my inittab:
# /etc/inittab
#  Runlevels:
#    0    Halt
#    1(S)    Single-user
#    2    Not used
#    3    Multi-user
#    4    Not used
#    5    X11
#    6    Reboot
## Only one of the following two lines can be uncommented!
# Boot to console
id:3:initdefault:
# Boot to X11
#id:5:initdefault:
rc::sysinit:/etc/rc.sysinit
rs:S1:wait:/etc/rc.single
rm:2345:wait:/etc/rc.multi
rh:06:wait:/etc/rc.shutdown
su:S:wait:/sbin/sulogin -p
# -8 options fixes umlauts problem on login
c1:2345:respawn:/sbin/agetty -8 -s 38400 tty1 linux
c2:2345:respawn:/sbin/agetty -8 -s 38400 tty2 linux
c3:2345:respawn:/sbin/agetty -8 -s 38400 tty3 linux
c4:2345:respawn:/sbin/agetty -8 -s 38400 tty4 linux
c5:2345:respawn:/sbin/agetty -8 -s 38400 tty5 linux
c6:2345:respawn:/sbin/agetty -8 -s 38400 tty6 linux
# Serial Virtual Console for KVM and others VMs
#s0:2345:respawn:/sbin/agetty -8 -s 9600 ttyS0 linux
# Hypervisor Virtual Console for Xen and KVM
#h0:2345:respawn:/sbin/agetty -8 -s 38400 hvc0 linux
ca::ctrlaltdel:/sbin/shutdown -t3 -r now
# Example lines for starting a login manager
#x:5:respawn:/usr/bin/xdm -nodaemon
#x:5:respawn:/usr/sbin/gdm -nodaemon
#x:5:respawn:/usr/bin/kdm -nodaemon
x:5:respawn:/usr/bin/slim >/dev/null 2>&1
# End of file