I've got a Happs 2.5" trackball attached to a minipac, and I get terrible backspin.
(Even on the windows desktop)
Additional info.
Hooked up a Ultimarc trackball tonight, and still have the same terrible backspin.
It works great thru the happs ps/2 interface, but with the minipac, it's really bad.
Just standard movement on the windows desktop result in backspin.
Any suggestions?
(Maybe new encoder wheels???)
Later,
dabone