Two possibilities:
1. Your BIOS is set to look for an AGP card while startup and so the onboard
VGA is getting de-activated. That explains why you do not get a signal on
the onboard VGA. Set your BIOS to look for onboard VGA first, the setting is
usually called "Init Display First" and the default value is "AGP slot".
Change it to Onboard.
Then connect your primary monitor to the onboard VGA and boot. Then try
extending the display from within Windows.
2. Your onboard VGA does not support multiple display. Contact your
motherboard manufacturer if there is a driver update which enable this
support. I had to purchase a new VGA adaptor(a Cirrus Logic) because my 1 MB
SiS 6215(cheapest in those times) did not support multiple monitors.
Let us know if this helps.
"td" <(E-Mail Removed)> wrote in message
news

5510B25-7248-493F-8CEA-(E-Mail Removed)...
> Thanks for the help Yves Leclerc and Matej Barac.
>
> Unfortunately the new agp card I bought is a cheaper radeon 7000 that only
> has a vga and svideo connection. No DVI connection so I cant use the new
> card
> for 2 monitors im afraid. I wish I had opted for the 9700 now!!
>
> Does anyone know if its possible to enable the on board graphics card and
> run the agp card at the same time so I can run a 2 monitors, ie. one
> monitor
> from the vga connection on each card??