MMmm looks like they are incompatible with the graphics drivers? I am assuming NO OTHER programs have this issue correct (modern games, websites, opening a Word document and zooming in, etc.)? Have you tried to update the graphics driver?
Only other things I would look up the maker and see if A) still in business B) have any support for the game (most remove support when they are too old) C) Download any patches / fixes by googling the game name and the word PATCH.
If those don't work, there is only two alternatives left; 1) Setup a Virtual Sandbox and install the OS into the Sandbox the games are made for (say Vista or XP) if you have Legitamite owned OS copies for them, then install the games into the Virtual Sandbox and see if...