time but use the priority measure associated with the image to influence the probability of being displayed on the lcd screen 30 in this scenario the u201c next screen u201d will be randomly selected from the available clients or applications 202 weighted by the associated priority levels in yet another scheduling mechanism the latest application or client 202 that was started will get the screen time of the lcd screen 30 when this latest application stops using the screen the previously displayed one will be restored and so on as an example this works well for the situation where there is a u201c normal screen u201d with a clock along with a game that is lcd enabled during the game the user will see the game 39 s output and when returning to the desktop application the clock will reappear on the screen some applications or clients either by mistake or by design may be putting up screens with the priority turned up unreasonably high thereby forcing their way to the top of the priority list one example involves an advertisement that keeps flashing itself to the front to address this problem the lcd program 200 may include an avoidance module 220 for example the avoidance module.