Okay so I have a dell studio 1535 , and I have a problem.
I had my keyboard changed a couple of weeks back (squeaky spacebar drove me nuts) , and yesterday night my backlit keyboard just stopped glowing.
I checked my shortcut key (fn + right arrow) again and again and the icon on the screen that it's acknowledged it - but the keyboard lights did not glow.
Now it glows intermittently - some random times , just for a while and goes back again , all on it's own.
I checked for the functionality of my keyboard keys , all work.Updated my BIOS , nothing happened.