tell them to go to settings(top of there screen) >>>appearance >>>> change large font if on winmx on robo go to view(top left of there screen) >>>>options >>>>colour then adjust the font size to suit (a option on the btm right of the screen)
or they could try start menu >>> all program's >>>>accessories >>>> accessibility & use the magnifier
failing that perhaps they could pull there chair a lil closer to the screen
