This recently happened to me, but never before since the upgrade to 12.04. News that I recall were: installation of MySQL security updates (probably unrelated) and my using LibreOffice for the first time since the upgrade.
This recently happened to me, but never before since the upgrade to 12.04. News that I recall were: installation of MySQL security updates (probably unrelated) and my using LibreOffice for the first time since the upgrade.