Problem with red tinted display
Information about the problem of red tinted display corners in T23 ThinkPads.
If your screen is developing a red tint on the bottom left and/or right corners, this is the sign of a dying LCD and it will slowly spread to the whole screen.
- ThinkPad T23 (with high resolution displays)
Affected Operating Systems
It is not clear which component (screen/backlight/inverter) exactly is responsible for this.
You can probably have IBM replace your display if your ThinkPad is still in warranty.