MAC>

Home and End keys

Source: http://evansweb.info/articles/2005/03/24/mac-os-x-and-home-end-keys

Start the Terminal application
Type the following:
    cd /Library
    mkdir KeyBindings
    cd KeyBindings
    pico DefaultKeyBinding.dict

If the pico screen has no other text in it, then Paste the following text into the file: 

{
        /* Remap Home / End to be correct :-) */
        "UF729"  = "moveToBeginningOfLine:";                   /* Home         */
        "UF72B"  = "moveToEndOfLine:";                         /* End          */
        "$UF729" = "moveToBeginningOfLineAndModifySelection:"; /* Shift + Home */
        "$UF72B" = "moveToEndOfLineAndModifySelection:";       /* Shift + End  */
}

If there are already entries in DefaultKeyBinding.dict,  just add the 4 new mappings above to the main section of your file.

Press control+o to save the file
Press control+x to exit the file

Type: exit

Start Microsoft Word, type in some tex, press the Home key.  It should go to the start of the line.