UPDATE:
Still doing some more web mining.
The DT-225 Trackball & the Qtronix Libra 90 Trackball do not come with drivers.
But use the ones that Microsoft supplies with Windows 7.
{Slams forehead on desk out of frustration!}
{Which is what my old Kensington Trackball is already doing!}
On the Third Party Mouse Software front......
I have had no luck contacting
PlentyCom Systems about their software.
But I came across software from
CST (
C)learly (
S)uperior (
T)echnologies, Inc.
They are offering free;
Superior X Software.
http://clearlysuperiortech.com/superiorx.html
I'll try it out, and see if it will give me back my fine adjustment for the Pointer speed.
{Fingers Crossed}
Signed: Ensign Tzap