Resource to check for System Model number with Screen Resolution
How To   I have a T43 2668-89U and need to get a replacement
unit. I have discovered that not all 15" units have the native
resolution that I desire, which is 1400x1050.   I have been
looking around in various websites and see that many units for
sale do not have either a hard drive or an OS, so the seller
doesn't know what the screen's resolution is. Are there any
resources that I can refer to to get information about this?
To check the screen resolution of systems, all you need is the
seven-character model number. Key this in at this website:   Key
in the seven-character  in the "Quick Path" search and you will
be able to get the information required.