Unable to log back in.

[Graham Martin]

Hi, I need some help please.  
This is dapper flight3 it is kept up to date.
This happened after I installed (k9copy with synaptic) after I logged
out
I couldn't log back in again, it complained about problems and
tells me to check the ./xsessions-errors file.
This is a copy of my ./xsession-errors file below.

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/etc/gdm/PreSession/Default: Registering your session with wtmp and utmp
/etc/gdm/PreSession/Default: running: /usr/bin/sessreg -a
-w /var/log/wtmp -u /var/run/utmp -x "/var/lib/gdm/:0.Xservers" -h "" -l
":0" "graham"
/etc/gdm/Xsession: Beginning session setup...
No profile for user 'graham' found

(process:5450): Gtk-WARNING **: This process is currently running setuid
or setgid.
This is not a supported use of GTK+. You must create a helper
program instead. For further details, see:

    http://www.gtk.org/setuid.html
Refusing to initialize GTK+.

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Thank's Graham.