title_body: damaged kindle- change lines per page? this is a long shot but I thought I would try:
  
  My older Kindle (6", b&amp;w, no backlight) has sustained some damage to the bottom (1/3" or less) of the screen - not visibly cracked just unresponsive.  Now it is still almost usable, however the bottom line or half line of every page (or every other page) gets cut off and I can't read it.  Is there any way, through either editing the MOBI file, or perhaps the Kindle settings ("jailbreaking??"), that I can force a page break or make it display one line less on every page?
  Any suggestions appreciated.
upvoted_answer: You can increase the value of the HORIZONTAL_MARGIN parameter in the reader.pref configuration file (in the system directory). You can find more details here or here.