Maybe no one else is a dense as I am. I installed vector linux 7 on my IBM X23. I liked it very much. However the screen brightness was very dim. I cked my x set up and brightness on Vector and had it set as high as it would go. I was getting frustrated. The screen was just too dim!!! Well I discovered the fix. On my laptop key board if I hold down the Fn (function key) and then the Home key that will make the screen brighter! and the Fn and End key will make the Screen dimmer. Now that I figured that out, I can now see just great! For us who are new to laptops this might help someone else!
Mike in Iowa