Lost keyboard shortcut for beginning-of-line/end-of-line After purchasing a new computer (Mac Mini w/Lion) and migrating my settings from old one (Macbook Pro w/Snow Leopard), the system shortcuts for beginning-of-line and end-of-line text navigation commands (Cmd-left/right arrow) just don't work anymore, anywhere. 

Curiously, this happens only in a single user account, and in other accounts on the same computer it's OK. Other shortcuts with the Command key (like Cmd-up) also work just fine.

I have browsed through the keyboard shortcuts in System Preferences > Keyboard. I also have KeyRemap4Macbook installed and browsed through its settings, to no avail. There is no Keybindings folder in my ~/Library, either.

Anybody have any idea how to even start debugging this problem?
I remember having the same problem in some apps after upgrading to Lion. A reboot fixed it for me.

Workaround: use Ctrl+A (instead of ⌘+←) to move the cursor to the beginning of the line and Ctrl+E to move the cursor to the end of the line (instead of ⌘+→). This works in all Cocoa-based applications.