Solved Win 8.1 touchpad driver for Dell D610

Installed 32-bit Win 8.1 onto a Dell D610 (Pentium M 1.86GHz 2GB RAM) and it really works very well. Except for one nagging problem - the 4 left/right click buttons do not work! I have tried several drivers and all give full touch pad functionality (scroll and tap/click) and the keyboard stick works - but both sets of left and right buttons refuse to do anything. All worked with Win 7, so I assume it is a driver problem. I currently have a Logitech USB wireless mouse attached which works fine, but I would like to get the buttons on the laptop functioning.
Any ideas which driver may work?

Hello Procrastinus,

I'm surprised you were able to get Win 8.1 installed and working with that older hardware. Anyway, can you tell us the touchpad driver version you are currently using so we have a baseline for investigation?

Good afternoon, my2cents, thank you for your reply and sorry for my delay.
Yes, I was surprised at how well Win8.1 runs on 'this old hardware'! Only the video controller has a yellow mark in Device Manager, but the aero/peek works fine.
I initially installed Win8 and there, the buttons worked but I could not get the scroll to work and I just allowed Windows to find a driver. With Win 8.1, I googled and installed Alps Multi Touchpad driver A05. This gave me scroll but no buttons worked, So I uninstalled the driver, but Windows reinstalled an Alps diver on restart, with the same condition i.e. scroll OK but no buttons. Of the two conditions, I would rather the buttons worked and I used the keyboard for scrolling.
Any ideas?

More Googling led me to this page: Fixed: Cannot install Synaptics Touchpad Driver Windows 8.1 - RyuKent on Technology and Life
I then uninstalled the Alps driver and without rebooting, installed the Synaptic driver. Following a reboot, I have all the buttons working together with the tap/click, but the scrolling function is absent. Tant pis as we say here - I can easily scroll using the keyboard.
Wonderful 'old hardware' will go on for several more years!!