My Fujitsu Siemens Amilo fujitso seimens laptop keyboard doesn't respond to all keystrokes unless I slow down my typing, make each stroke definite and firm and check every word. I have reboted several time to o effect. Works for a short time ok and then wil suddely act up again. As can be sen from what I have written here. The typos are not mine they are the keyboard not reactig!!!!! Frustrated!! Can anyone advise? I take it this is a hardware isue and need help to resolve it please.