Quote Originally Posted by Maximillium View Post

I connect mouse (Logitech trackball) and keyboard to the linux box and to a Compac Win98 box that runs old software necessary to maintain records going back to 1995 (Lotus 1-2-3), and for which there is no modern equivalent. Long story short, without that software, I lose the data, period. The KVM switch is for too-many-computers on too-small-desktop (the real, physical wood kind).

Surely there is some adjustment that would work, if that indeed is the problem.
Have you considered installing Win98 in a virtual machine (eg: VirtualBox) on the Linux box and running that software in there?