I have looked very closely at the edges to see if it is off the edge and cannot find anything to indicate that. I have repeatedly toggled the pallets on and off and do not see a hint of that darn missing palette.
Every single other palette is visible; the character palette is marked as visible in the drop-down. None of the menu options brings it back, or Ctrl-t. I am also using V10 for Windows.
Man, this makes me mad! I guess I will re-install and loose all my custom plug-ins and setup I have been using for two years. Crap.
If you have dragged it off screen ..surely making an oversize illustration (compared to your screen size ) and then horizontal scrolling around you ought to be able to find it again .. BTW .which version is it