Hello all, I'm trying to turn my backlight off, or control it. I ran the DeviceIoControl function, but seem to be getting errors. It's not filling the supplied buffer defined as BYTE vid[256]; with data. I was wondering if anyone would happen to have some sample code, or snippets. I'm basically trying to lower the backlight in order to preserve battery life on the laptop. Thanks, Tyler Littlefield Vertigo head coder. "I can only please one person per day; Today doesn't seem like your day, and tomorrow doesn't look to promising either." "A life? Where can I download that at?" Contact information: email: tyler@xxxxxxxxxxxxx skype: st8amnd127 aim: st8amnd2005 msn: tyler@xxxxxxxxxxxxx