Your screen needs to be calibrated with a probe, it's likely that your T60 doesn't provide accurate colors either.
A quick and dirty fix is to load an ICC Profile from a reference site, I know the one that is
here but it doesn't contain a profile for your particular screen.
Colors and luminosity tend to vary over time and over the surface of a screen, however colors tend to be consistent from one sample to another of a same model but are
not consistent on a given brand.
The only way to get accurate colors is to use a calibration solution,
this one is pretty popular, but there are other valid ones. Even such a solution, some screen can never be calibrated up to satisfaying level.
Some brands are specialized in pre-calibrated high quality screens, the most famous being
Eizo, but those are by far to expensive for the amateur.
A good LCD (Dell, Sony, Samsung...) correctly calibrate should do the trick.