Mouse Behavior

I'm running a five button wired Intellimouse Optical mouse using Kensington

Mouseworks software on W2K. I've done this for years (mostly on 98SE) and

it's a very nice setup - virtually bug free and much better than Microsoft's

Intellipoint software. But lately I've developed a problem which at least so

far I can't correct. For some reason, despite my user settings to the

contrary, the mouse automatically moves the pointer to the default setting

in a dialog box. The user setting under Mouse in the control panel - which

is set to disallow this behavior - appears to be reflected in the registry

setting as best I can tell.

The only computer events I can think of that have occurred recently that are

even slightly out of the ordinary are that I changed graphics cards about a

month ago (from Nvidia to a somewhat better Nvidia) and also there was a

recent security update from Microsoft that apparently has caused problems

for some people, but I do them manually and didn't download the offending

part. So I'm totally at a loss as to why this is happening, but hopefully

someone knows a fix for it.