Third Monitor without video card support?

Question

I am getting a new monitor and I am wondering if there is a way to keep my old one and go to 3 monitors. (I have 2 now.)

My laptop/docking station only supports 2 monitors, so any solution would have to have to not rely on the video card having 3 ports.

Software, external hardware? I do have access to an extra machine I am not using if that helps. (Maybe there is some way to make the extra machine be a slave video driver?)

Any ideas?

My laptop specs are: Dell, XP, Core 2 Duo 2 Ghz, 4GB Ram, 250 GB HD (SSD), Nvidia Quadro FX 4800m

Answer 1

USB to DVI External Video Card, High Resolution, 1600 x 1200

That should do and the price is reasonable.

If you have a spare computer, you may use ZoneScreen to clone or extend the display of your laptop to another computer. over a network connection.

ZoneScreen is freeware.

Answer 2

If you want to use the extra PC, look into MaxiVista.

MaxiVista turns any spare Desktop, Laptop or Netbook PC into a dual monitor for your primary computer. No extra multi monitor hardware is required. Simply extend program windows across multiple screens as if it were one big monitor. Increase your productivity by using multiple monitors.

Now with Windows 32/64 Bit Vista and Windows 7 support.