1. A mobile communications terminal, comprising: memory; a display configured to display a representation of a first user interface state; and a controller circuit, wherein the controller circuit is configured to: detect a user interface changing event that causes a change from the first user interface state to a second user interface state; in response to detecting the event: change from the first user interface state to the second user interface state; and cause the display to display a representation of the second user interface state; receive an input; interpret the input based on first and second time periods that commence at a time of detecting the event as follows: interpret the input based on the first user interface state when the input is received in the first time period; and interpret the input as being null and void when the input is received after the first time period but in the second time period, wherein the second time period is greater than the first time period; and process the input according to the interpretation.