Dual monitor set up for Projector

I have a Dell Vostro A860 running Karmic with Intel Mobile GM965/GL960 Integrated Graphics Controller. I want to use my laptop for projecting my presentations etc through an LCD projector. However I could not configure the projector using display settings in panel. I use the Fn+F8 key after connecting the projector but there is no display in the projector though my laptop monitor resolution changes. The xorg.conf is blank. The output of xrandr -q is
Screen 0: minimum 320 x 200, current 1360 x 768, maximum 8192 x 8192
VGA1 connected 1360x768+0+0 (normal left inverted right x axis y axis)
0mm x 0mm
   1360x768 59.8*
   1152x864 60.0
   1024x768 60.0
   800x600 60.3
   640x480 59.9
LVDS1 connected 1360x768+0+0 (normal left inverted right x axis y axis)
344mm x 193mm
   1366x768 60.1 +
   1360x768 59.8*
   1024x768 85.0 75.0 70.1 60.0
   832x624 74.6
   800x600 85.1 72.2 75.0 60.3 56.2
   640x480 85.0 72.8 75.0 59.9
   720x400 85.0
   640x400 85.1
   640x350 85.1 Screen 0: minimum 320 x 200,
 How to fix this? Will tweaking the xorg.conf help?