Previously I had a Dell touchscreen, and now a Thinkpad tablet. With neither did the touchpad ever scroll with Logos4; no problem with Libronix3 and other applications.
But yesterday, Lenovo updated my portable and included in the update was a touchpad upgrade from Synaptics
Now Logos4 scrolls (good!) and scrolls fast (really good; maybe TOO good).
Even better the driver correctly moves between the PC system and the VirtualPC (previously it didn't).
Now if the latest Logos4 update had something to do with it, well, that be good too!! (but I first noticed it accidentally in Opera yesterday).