Synaptics Touchpad Mouse Error

[ks31]

My problem is that the touchpad mouse is not working anymore. I think this problem occured after a software update.
I tried to update the synaptics mouse driver again and went to previous system repair point. But this did not fix the problem.

When I go to Config panel - Mouse, the tab for Synaptics mouse is gone. Also this icon is gone in the Notification area.

How can I fix this problem?

Thanks in advance

[Dudefoxlive]

Please check device manager for any unknown devices. Sometimes it helps to uninstall the touchpad and reinstall the drivers for it. 

[ks31]

Thanks for the reply. But I already did this. Problem still excists.