I have found this so annoying, and I use desktops! I was actually
surfing the net for another program to replace I.D. when I found your
post here on the fix. I'll see about picking up some cheap mice and
see if it fixes the issue.
I'm running three desktops and using only one Keyboard and Mouse.
When I scroll, it only scrolls on the master. I also seems to send the
mouse cords to master station when I hold down the right mouse button.
This is why I'm actually using three stations as the master is a low
power station not running anything except I.D. so I can use the other
two stations.
I'll visit back and let you know, how the issue goes for me.