Ok so ages weeks ago I bought a keyboard ,cos I thought the lagging and slow scrolling was down to the mouse and battery.Well three weeks or so later.The scrolling has got worse.The tower is so old it has Windows Vista.So could the tower be coming to the end of its life,or is it the fact we downgraded the Virgin tv package months ago,reducing the tv channels and more importantly the broadband speed.Cos I am thinking of doing something like increasing the speed or buying another tower.Idont want to do both,if one is ok.