T61P grayish screen is hard on my eyes

[BostonFern]

I have a high resolution T61P.    Comparing with my T43,  T61P has very bright and very white-greyish screen.  Although I can dim the brightness, I don't know how to change the color tone.    Because the whiteness of the screen, I have to increase the fond size to the extent that it becomes "bold", in order to increase the contrast between the background and the letters. 

Is there any way I can change the background color to be more while-yellowish like  my T43 screen, which  is much easier on my eyes?

[BostonFern]

I did more research and found I can increase the DPI from 96 to 120, which I did.  After this the font was made of thicker lines and is easier to read.  But I found the right edge of the screen was missing , and  I had to move my mouse to the very right if I want to see the right edge, same thing for the bottom edge of screen.  To correct this, I have to change the screen resolution to 1680*1050.  

I like to keep the old 1920 resolution.    Do people have a better solution?  

[lead_org Microsoft MVP Contributor]

what is the full model no. of your T61p? xxxx-xxx?