An apparatus is provided, which comprises: a display configured to display an image, a sensor arrangement (100), and a processing arrangement, wherein the sensor arrangement comprises first, second and third linear sensor arrays (102,104,106), each of the linear sensor arrays being disposed generally orthogonal to each of the other linear sensor arrays and converging with each of the other linear sensor arrays at or near one end thereof, and wherein the processing arrangement is configured, in response to determining that two consecutive inputs are on different ones of the first and second linear sensor arrays, to rotate the image displayed on the display about a first axis, in response to determining that two consecutive inputs are on different ones of the second and third sensor arrays, to rotate the image displayed on the display about a second axis, the second axis being substantially perpendicular to the first axis, and in response to determining that two consecutive inputs are on different ones of the first and third linear sensor arrays, to rotate the image displayed on the display about a third axis, the third axis being substantially perpendicular to both the first and second axes.