Today I've noticed that Cmd+} has stopped working for me in Snow Leopard's Terminal.app as a shortcut to cycle to the next tab. Cmd+{ still works. I've gone to the Preferences->keyboard shortcuts and when I try to create a new shortcut pressing Cmd+} I get Cmd+alt+Ç in the window. I get Cmd+alt+´ when pressing Cmd+{ (I'm on a Spanish macbook pro).

I've also noticed that I cannot create a custom shortcut for Terminal.app, because it is not in the list of applications I can create shortcuts for, and neither can I add it to the list.

How can I debug what is "eating" the cycle right tab shortcut key? I've got sizzling keys plugin, keyboard remapper (for the esc/capslock key) but I've tried disabling them and still didn't recover the terminal shortcut.