T510 trackpoint suddenly won't scroll

[spldi]

Last week or the week before my trackpoint on my T510 stopped scrolling.  The system is MT/M 4314-7QU running 64-bit Windows 7.  I've installed 15.2 19.0 but still no scrolling.  I'm not sure what happened or where to look.  I've also uninstalled the trackpoint in device manager, removed the driver and it's made no difference.  The touchpad works but I prefer the trackpoint.  This machine is less than 6 months old so it's still under warranty.  Any suggestions?

[ColonelONeill]

Hit Fn+F8, Manage Settings, UltraNav tab, TrackPoint Settings. Try the Standard Scrolling setting.

[spldi]

Thanks - checked that and my UltraNav settings are already set to use standard scrolling.  Any other suggestions would be greatly appreciated.

[ColonelONeill]

Look in Task Manager for SynTPEnh.exe, SynTPLpr.exe and SynTPHelper.exe

[spldi]

All three processes are running.  This is so strange.