I'm curious - and this is probably directed at AdventureIslands in particular - did you hit this issue when you published Shine, Duke Dashington or whatever else you've made in 3.0?
@Cory/Dripple - Our logic for positioning the leaderboard is this. Doesn't look amiss to me. Is there any chance this is one of those 2x scale games maybe?
scoreBrowser.x = Engine.screenWidth/2*Engine.SCALE - scoreBrowser.width/2;
scoreBrowser.y = Engine.screenHeight/2*Engine.SCALE - scoreBrowser.height/2;