On Aug 30, 2005, at 06:42, Steven Rogers wrote: > > On Aug 24, 2005, at 12:16 PM, Rodney A.Hoiseth wrote: > >> I had posted the same question to the MacWizards list and one of >> the Wizards made a suggestion that sounds right, but I haven't >> followed up on it yet: He suggested it might be the scroll wheel on >> my mouse, (even though he had no way of knowing I had a two-button >> mouse with a scroll wheel...) The jumping is similar to the >> movement produced by the mouse (a Kensington "Mouse in a Box"). > > That would be my guess. Try a different mouse and see if it goes away. Curiously enough, it has stopped doing it. (Is there some corollary to Murphy's Law in there? ;-) If it starts up again, I now know where to look first for the solution. >> Somebody has pointed out that the firewall built into OS X is >> probably all that's necessary anyway. > > That would work, but its usually more convenient to just configure > the router once rather than set up a software firewall for each > individual computer. That way, you don't accidentally forget to > configure a new computer, or have to worry about whether any software > update might change some settings. Good point. Thanks again Steven. RAH