I'm developing a game for the 6310i. I only want to redraw some parts of the screen each time, so I draw a static background and everything else goes on it, but the background has to be immutable. For the areas I have to refresh I draw a blank rectangle before drawing the up-to-date image. The size of the blank rectangles are right, I'm sure. The matter is from the 2nd iteration: the background disappears and the rest of the game goes OK, but without background :( I don't want to draw the background because in this case the screen flickers. In works perfectly on the Sun's J2ME emulators. All answers are welcome. Thanks.