Hi Catherine, Yes the Logitech Marble Mouse is optical. I use it on the second computer on my desk as it does not require any rolling space as the normal mouse does. I prefer the Wheel Mouse as it has the scrolling wheel for scrolling text and web pages. But it does occupy more desk space. Mike ~ It is a good day if I learned something new. Editor MikesWhatsNews see ~ http://www.mwn.ca <mikeswhatsnews-request@xxxxxxxxxxxxx?Subject=subscribe> See my Anti-Virus pages ~ http://virusinfo.hackfix.org A Technical Support Alliance Member http://groups.yahoo.com/group/techsupportalliance/ *********** REPLY SEPARATOR *********** On 05/11/2002 at 11:01 AM camrie@xxxxxxxxx wrote: Hi Mike, I'm a tad confused here, aren't these one and the same? The Logitech Marble Mouse that I've looked at is an optical trackball which doesn't require any cleaning. Or are you saying you prefer using a mouse to a trackball, just as long as it's optical? That misnomer on the trackball is starting to seem like a mousetrap. Thanks, Catherine ~*~*~*~*~ Was this forwarded to you? Want to subscribe? Send an email to 1stpickpchelp-request@xxxxxxxxxxxxx?Subject=subscribe. For a complete list of email commands for our list send an email to ecartis@xxxxxxxxxxxxx with a subject of "info 1stpickpchelp" without the quotes. If you wish to unsubscribe from our list send an email to 1stpickpchelp-request@xxxxxxxxxxxxx?Subject=unsubscribe To contact the list moderators send an email to 1stpickpchelp-moderators@xxxxxxxxxxxxx ~*~*~*~*~