DidSelectItem for UITabBar doesn't correctly register touch

Question

There is an issue with didSelectItem UITabBar. The app consists of 2 View Controllers connected via UITabBar. 2 tab bars: Client - Settings
tabBar.delegate = self; NSMutableArray *tabBarItems = [[NSMutableArray alloc] init];  UITabBarItem *tabBarItem1 = [[UITabBarItem alloc] initWithTitle:@"Client" image:[UIImage imageNamed:@"icon_zakaz.png"] tag:0]; UITabBarItem *tabBarItem2 = [[UITabBarItem alloc] initWithTitle:@"Settings" image:[UIImage imageNamed:@"icon_settings.png"] tag:1];  [tabBarItems addObject:tabBarItem1]; [tabBarItems addObject:tabBarItem2];  tabBar.items = tabBarItems; tabBar.selectedItem = [tabBarItems objectAtIndex:0]; 
-(void)tabBar: (UITabBar *)tabBar didSelectItem: (UITabBarItem *)item {       int selectedTag=tabBar.selectedItem.tag;     NSLog(@"%d",item.tag);       if (selectedTag==0) {           // NSLog;      } else if(selectedTag==1) {           SettingsViewController *ViewController = [[SettingsViewController alloc]initWithNibName:@"SettingsViewController" bundle:nil];           [self presentViewController:ViewController animated:NO completion:nil];      } }
From Client view controller I can easily switch to Settings VC. didSelectItem correctly handles events.
But I can't switch back from settings to client.
Seems that didSelectItem doesn't correctly register the touch. At the moment to perform this operation I need to touch the tab bar and hold it.
Please help me D:
PS. I need UITabBar, not UITabBarController.

Answer 1

Hmm....I just had another thought.  All the machines are running Win7 SP1, BUT the 2 that can sync with MSE installed are 32bit versions, however the one that can't is 64bit.  Not sure if that makes any difference though.  All are clean installs with Win7SP1 media, not SP1 installed later.