iOS NSError and UIAlertView Problem

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error 
{	
	message.hidden = NO;
	// Notifies users about errors associated with the interface
	switch (result)
	{
		case MFMailComposeResultCancelled:{
			UIAlertView *cancelled = [[UIAlertView alloc] initWithTitle:@"Results" message:@"Email Was Cancelled" delegate:self cancelButtonTitle:@"Okay" otherButtonTitles:nil];
			[cancelled show];
			[cancelled release];
                       [COLOR="Red"]break[/COLOR];
}
			
		case MFMailComposeResultSaved:{
			UIAlertView *saved = [[UIAlertView alloc] initWithTitle:@"Results" message:@"Email Draft Saved" delegate:self cancelButtonTitle:@"Okay" otherButtonTitles:nil];
			[saved show];
			[saved release];
                        [COLOR="red"]break[/COLOR];
}
			
		case MFMailComposeResultSent:{
			UIAlertView *sent = [[UIAlertView alloc] initWithTitle:@"Results" message:@"Email Sent" delegate:self cancelButtonTitle:@"Okay" otherButtonTitles:nil];
			[sent show];
			[sent release];
                        [COLOR="red"]break[/COLOR];
		}
		case MFMailComposeResultFailed:{
			UIAlertView *failed = [[UIAlertView alloc] initWithTitle:@"Results" message:@"Email Failed To Send, Please Check Internet Connection And Try Again." delegate:self cancelButtonTitle:@"Okay" otherButtonTitles:nil];
			[failed show];
			[failed release];
                        [COLOR="red"]break[/COLOR];
		}
	}
	[self dismissModalViewControllerAnimated:YES];
}