The invention relates to glass compositions useful in conductive pastes for silicon semiconductor devices and photovoltaic cells. The method includes displaying the next file in the forward or reverse direction of an enlarged currently displayed image in response to a first or second operating signal which includes the signal generated by the first or second direction button. The alert condition is managed by assigning a disposition based on relative placement of the alert condition along the continuum. A computing device associated with the identified subscriber is provided an application that enables the computing device to communicate a request for notification of an event in their conference interface without being present in the conference interface.