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[iPhoneDevelopment]

This having worked before, I am mystified as to why it is not now :S.

- (void)viewDidLoad {
    [super viewDidLoad];
	self.gameState = kGameStatePaused;
	[NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(moveBlocks) userInfo:nil repeats:YES];
}

-(void)createBlocks{
	
    if (blockArray==nil){
		blockArray = [[NSMutableArray alloc] init]; }
	
    UIImage *blockImage = [UIImage imageNamed:@"block.png"];
	UIImageView *block;
	
	for (int i = 0; i< 1; i++){
		block = [[UIImageView alloc] initWithImage: blockImage];
	
        int x = arc4random()%320; 
        int y = 500;
        block.center = CGPointMake (x,y);
		
        [self.view addSubview: block];
        [blockArray addObject: block];
        [block release];
    }
}
	
-(void)moveBlocks {
	
	if(gameState == kGameStateRunning) {
		
		for (UIImageView *block in blockArray) {
			
			//move new center down
			CGPoint newCenter = block.center;
			newCenter.y = newCenter.y +10;
			block.center = newCenter;
		}
	}

Thanks

Cam

(P.S. For all your help smasher, I' looking at purchasing your app !)