Hi All, I have fixed all the warnings in the Game Center code for the BT_screen_quiz.m file (based on MGoBlue's Tutorial) Do not delete the section between //showscoreboard and //show quiz reward screen, as this section does not exist anymore. Here is the code: (Above "//show quiz reward screen") ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //submit score -(void)submitScore{ if(totalPoints > 0) { [self.gameCenterManager reportScore: totalPoints forCategory: self.currentLeaderBoard]; } GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { leaderboardController.category = self.currentLeaderBoard; leaderboardController.timeScope = GKLeaderboardTimeScopeWeek; leaderboardController.leaderboardDelegate = self; [self presentViewController:leaderboardController animated:YES completion:nil]; } } //show scoreboard -(void)showScoreboard{ GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { leaderboardController.category = self.currentLeaderBoard; leaderboardController.timeScope = GKLeaderboardTimeScopeWeek; leaderboardController.leaderboardDelegate = self; [self presentViewController:leaderboardController animated:YES completion:nil]; } } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Also add another action sheet option (Find "//delegate method for action sheet clicks") ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //submit score if([buttonTitle isEqual:NSLocalizedString(@"quizSubmitScore", @"Submit Score")]){ [self submitScore]; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Jake

Nice stuff, Jake. Much Appreciated! :) Cheers! -- Smug