I usually use CTRL+Left and CTRL+Right to navigate between words on the command-line. I switched my laptop on this morning and can no longer do that. Instead, the CTRL+Left input code gets printed in the terminal.
Ie: Here's my output when I try to navigate with CTRL+Left:
~ $ test test ;5D;5D;5D
Curiously, I can still use CTRL+Left/Right just fine in VIM.