Dirk B

Quote:

May depend on the brand/model laptop--but, I suspect it will--if it works the same way my laptop works.  Also may depend on what mouse driver software is being used.

The touch pad on my Dell Dimension laptop is wired internally to appear as a PS/2 port (serial port) with a *Logitech-compatible Mouse*.  If I go into *Device Manager*, it is listed under the category *Mice and other pointing devices*

And, my optical USB mouse that is hooked up at the same time is listed in *Device Manager* under the category *Human Interface Devices* as a *USB Optical WheelMouse*.

And, in *Control Panel > Mouse*, both devices are listed in the drop down box under the *Devices* tab (I'm using a Logitech mouse driver on the laptop--so I don't know if that makes any difference?):

--Pointing device on PS/2 port
--Wheel Mouse on a USB port

What brand/model laptop are you using?  How are your mice listed on your system?

For the most part, your trackball looks the same to windows as any standard mouse.

If both pointing devices are enabled, just make sure you don't touch the 'touchpad' on the PC while using the trackball.
To disable the 'touchpad' DE-Select the Synaptics program from starting on boot.

In times past, I've even put two mice on the same computer, one set to standard buttons and one set to reverse the buttons for a left handed person.

On this PC, I have a USB Microsoft Digital Wheel mouse for working in Windows and a PS2 wheel mouse for use in Ghost, under DOS, with Mouse.com as the driver.

I can understand your question, if you've never used two mice at the same time, but it's very common practice.
Try it!

Cheers Mate!
Casper 

i have pretty much the same config.

it works no problem.

logitech trackball.