Notice how the screen is yellowy and dim. All of the X60 and X61 models had a matte, 1024x768 LCD panel that wasn't particularly great even back in 2006. The convertible laptop tablet models - the X60T and X61T - had a 1400x1050 panel, which is a popular modification, for the non-tablet models, but it's rare on the used market nowadays.

1024x768 IBM ThinkPad Wallpaper 1400x1050 In 20...