vncserver geometry

My /etc/sysconfig/vncservers file contains this line:

VNCSERVERS[1]="-geometry 1280x1024"

(there are no other servers defined.. just [1])

But when I start a VNC session the window opens at 1024x768.  


/home/username/.vnc/xstartup looks like this:

#!/bin/sh

# Uncomment the following two lines for normal desktop:
# unset SESSION_MANAGER
# exec /etc/X11/xinit/xinitrc

[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
startkde &

Is there something I'm overlooking?  I'd really like 1280x1024 resolution, if it is even possible with vncserver.

thanks.