Multiple Monitor-Need Help

[Guest]

Hi,
I'm new to the group and am looking for some help. I have an IBM ThinkPad
Pentium III running Windows XP Pro. I am trying to set up my display so I
can plug a monitor (Mitsubishi Diamond Pro 900u) into the back of the laptop
so I can drag my windows from the laptop to the monitor. When I plug in the
Monitor I get the same display on both.
I've gone into the settings tab and tried to switch the diplay to multiple
monitors and look for the expand my desktop options but I don't get the drop
down option for the mulitpl display where I can designate my primary and
secondary monitor.
When I plugged in the monitor it did not prompt me for new hardware but I
assume it's working since I can see the display on the laptop and the monitor.
When I look at the display tab in setting it says muliple monitor parethesis
but I don'tget the drop down or option to set up the multiple monitor.
Can some please help?

 

[Guest]

This would be a function of the display adapter hardware on your laptop and,
as far as I know, none support multiple monitors; at least not in the
configuration you mention. The connection on the laptop is designed as an
either-or proposition to replace the LCD. The only possible way you might be
able to have a dual monitor setup on a laptop is to use the external monitor
with a dual-head adapter and 2 monitors, assuming the hardware supports it.