Volatile Yard 挥洒自如 Write anything I want to write...

I turn on my Xubuntu box and fire up konqueror. I press Ctrl+F2 to switch to another workspace, do something there, and then press Ctrl+F1 to switch back to the workspace with konqueror. Behold! The last Ctrl key has summoned several small yellow boxes (with letters in them) waiting to serve me. The status bar of konqueror tells me what happened: "Access Keys activated". I don't want any of them. What can I do?

• Press Esc key every now and then to send all these boxes away; or
• Disable it once and for all!

  $ kwriteconfig –file konquerorrc –group "Access Keys" –key Enabled –type bool false
  

Restart konqueror. Behold! Ctrl key summons nothing from konqueror now!