thanks for the reply, I am hoping to have mine next week. am looking forward to it.
You're welcome, pook.
After a little experimenting, I've found that AHK's
#InstallMouseHook picks up the trackball's unlocked L and R click-lock as LButton and RButton, which are standard L and R mouse buttons. This means assigning functions to L and R click-lock under AHK interferes with the L and R mouse buttons, too. This won't do at all.
More reading about DIP switch configuration reveals that a Logitech PS/2 3-button configuration is available; this means upper L button is the click-lock button and upper R is the middle mouse button (which AHK detects as MButton, thereby making it independently programmable) and can act as a scroll button. This configuration makes the DT225 more useful.
Here is my DIP switch configuration:
1 and 2 ON: Normal Axis Operation
3 OFF: Normal Cursor Speed
4 ON: Doubles Cursor Speed (2x)
5--NULL (not used)
6 OFF: Disables upper L and R click-lock
7 ON: Logitech 3-button configuration
8 OFF
9 and 11 OFF: enables PS/2 mode
10 and 12 ON: enables Normal PS/2 mode
In sum, connected to PC via a PI Engineering Y-Mouse USB adapter. 2x cursor acceleration, Logitech 3 button configuration (upper L: click-lock; upper R: scroll; lower L and R: normal L and R mouse).
After a few hours with it, the trackball is silky smooth. There is occasional noise when rolling the trackball--I presume from the opto-mechanical mechanism--but there is no hesitation at all. The buttons are comfortable to press and press and hold when doing a click-lock operation, and I've experienced no hand or finger fatigue using this trackball. I'd recommend it over every Logitech I've used (Wheel, Marble), the MS Explorers, and the Kensington Expert Mouse v. 7 that you and I have, pook. I have the CST2545-5W on the way to compare against--and it may well be better than the DT225; but, for the price and considering the build quality--nuclear facility rugged--you can't go wrong and won't be disappointed.
Hope this helps, pook.
Cheers,
~rn