Hi there A few days ago my Synaptics touchpad started to malfunction and my computer was really laggy, for example when hovering over links or things in my toolbar it would not highlight the item for a while til it seemed the pc was ready... My main concern was that the touchpad was not doing what it was supposed to; when scrolling it would not release the scroll bar when I let go of the button, it was not selecting the things I clicked on etc.. After looking at advice online I found a lot of other people seemed to be having the same problem with Synaptics touchpads.. As recommended by o