I'd go to ibm.com, find the video driver and install it.
I have an IBM Thinkpad with a 15" screen that I've always had setup for 1024x768. 2 days ago, when I booted up, I noticed that my viewable screensize had shrunk, and that there was a considerable blacked-out area all around that actual startup screen. This remained after bootup. Now, the only way to actually have my entire laptop screen filled, is to have it set at 1600x1200, which creates very tiny images. I have tried updating display drivers. If I change screen size in the control panel, then the black-out area appears and the viewable window becomes smaller. I cannot understand why this would have changed since I haven't added any software, changed settings or hooked my laptop up to a monitor. help anyone?