'Sticky' Keys?

Hi all,

i'm having some trouble with my Studio 1535. For some time now the hotkeys have ceased to function entirely, though recently they now work to some extent, though refuse to light up, while not a particular problem, it's still a little inconvinient.

Also, and i;m not sure if this is related or not, occaisionally when i boot up, either the keyboard or the touch pad, or both, but more frequently neither refuse to work entirely. Though a reeboot usually solves this. I wonder if when i reboot my hotkeys will continue to work as they do currently, or if they will return to not working at all? I'll let you know when i reboot.

Another issue, along a similar vein, is while running a game, keys occasionally become stuck, strangely this never happens outside of a game, but then i'm rarely holding down a single key for any extended period outside a game.

has anyone had any similar problems, or any ideas as to what might be causing these issues?

thanks in advance