I have recently upgraded from Windows Vista Home Premium 32 bit to Windows 7 Ultimate 32 bit (formatted and clean installation). However the touchpad has lost the far right side scroll functionality and was working perfectly prior to the installation of the new OS. The device seems to be a 'PS/2 Compatible Mouse', I have uninstalled this and restarted and the device reinstalls itself automatically but without the scroll function. I have updated the driver however it tells me it is up to date. I have checked the Sony website for drivers for this model however the site does not contain Windows 7 trackpad drivers.
The model of my laptop is a Sony Vaio VGN-NS10J
Thanks for your time,