i'm thoroughly confused. I can usually deal with computers quite well, but i'm having some exceptional trouble with my new sony vaio VPCF1. It worked fine the first couple days, but after that, i found i couldn't lower the screen brightness. the Fn + F5 keyboard shortcut wouldn't work, the vaio control center setting for auto brightness was UNchecked, and in windows mobility center, i made sure to lower the minimum brightness levels for the power plan i was using. (i tried switching plans and restoring default plan settings also.)

Still it persists in keeping the screen at 100% brightness, despite all the changed settings, in dark or light ambient conditions, and with multiple restarts per day for weeks. Any one have a clue what's wrong? (i tend to think it's something to do with sony's software, as i'm pretty used to the Win 7 OS)