Accelerator character is shown strange.
At Mac OS X System Menu Bar.
code is 'HOME' to '$'
code is 'UP' to '&'
code is 'DOWN' to '('
code is 'END' to '#'
I hope shown HOME, UP, DOWN and END in Mac OS X System Menu Bar.

in Windows XP screenshot
https://a248.e.akamai.net/camo.github.com/2a62c2032848912e34b93db568df55ad7df7fecc/687474703a2f2f6779617a6f2e636f6d2f64616235366434396564626338303531356363366664326461663132383864662e706e673f31333535393838383932

in Mac OS X screenshot
https://f.cloud.github.com/assets/10117/22330/fbda9924-49f7-11e2-801a-f5925695b93b.png