every time i start my laptop it works fine for first 5 min then the last icon on my desktop get automatically selected and tapping of my touch stop working. if i select any other icon on my desktop or in any drive the last icon get automatically selected it seems like some down arrow key is pressed regularly.and if i restart my computer at once it start with a beep noise upto 10 sec and if i shutdown it and then start after 5-6 hrs it starts normally and then again after mins it start creating the same problem. plz help me out i am using lenovo z560 idepad plz mail me the solution at ali.razazaidi@ymail.com

I have the same problem. I press the UP ARROW key once the laptop completes booting. This solved the down key lock problem. I started hearing the beep sounds when I upgraded to windows 10. When I went back to windows 7 the beeping stopped during boot up but the down key problem exists. I am thinking of downgrading to XP to see if the noise problem and the keyboard works. I hope its not due to my ram upgrade.