Re-setting iTerm on MacOS X

None of the other solutions worked for me. This is from the new FAQ page:

defaults delete com.googlecode.iterm2

Here's a quote from the iTerm page:

Where does iTerm store its settings?

Since version 0.8.0, all the setting is stored in ~/Library/Preferences/iTerm.plist. In case something goes wrong, you can delete this file and iTerm will generate a new settings file that should always work.

Quit iTerm before you delete the preferences file and when you restart, it should be OK.

http://iterm.sourceforge.net/faq.shtml

iterm2 settings are stored in ~/Library/Preferences/com.googlecode.iterm2.plist. Removing that file will allow the program to reset to the defaults.