Abstract: Methods and devices are provided in which generation of an error is identified while a function of a program is performed. A message is displayed relating to existence of a solution corresponding to the error.

Abstract: Methods and devices are provided in which generation of an error is identified while a function of a program is performed. A message is displayed relating to existence of a solution corresponding to the error.

Abstract: A method to authenticate a device and service, and a system thereof, the authentication method including: requesting device authentication information from a device provider in order to receive a service from a service provider, distinct from the device provider, and receiving the device authentication information from the device provider, the device authentication information being used by the service provider to authenticate the device. Therefore, it is possible to perform a device authentication process and service authentication process more simply.

Abstract: A method to authenticate a device and service, and a system thereof, the authentication method including: requesting device authentication information from a device provider in order to receive a service from a service provider, distinct from the device provider, and receiving the device authentication information from the device provider, the device authentication information being used by the service provider to authenticate the device. Therefore, it is possible to perform a device authentication process and service authentication process more simply.

Abstract: Provided are an apparatus and method for supplying electronic programs for Video On Demand (VOD) services. The apparatus includes a service data receiving unit to receive service data about an image-based service, a service data sorting unit to sort the received service data according to a predetermined sorting condition, and a control unit to display the sorted service data according to the sorting condition through a predetermined graphical user interface.

Abstract: A pointing control apparatus including: an input unit including a plurality of direction keys and a screen division mode control key, the input unit outputting a screen division mode signal key signal in response to a pressing of the screen division mode control key and outputting a direction key signal in response to a pressing of a direction key; a display unit which displays data on a screen; and a control unit which, when a screen division mode control key signal is received, divides the screen, and, when a direction key signal is received, moves a pointer on the display unit by a screen division interval in a direction indicated by the received direction key signal.