Thanks all. I had to make a clean reinstall it was so anoying. It is ok at the moment but im sure it will go back to how it was. It seems to happen if i install a program and uninstall it. So if i install a program i have to leave it on comp, otherwise the left mouse button is very sluggish and repeated presses or hard presses are required to get a response. (is this any help?)
Thanks all.