I am using a sample ViewController that is displayed in the sample program as a presentModalViewController. However, I want to use pushViewController on the UIViewController instead. The problem is that when I switch to pushViewController, the ViewController no displays properly. Functions in the ViewController are called, but I don't see anything. I change back to presentModalViewController and everything works.

The question is what do I need to do to make pushViewController work?

FCVC *fcVC;
NSArray *array = [[NSBundle mainBundle] loadNibNamed:@"fcVC" owner:self options:nil];
fcVC = [array objectAtIndex:0];

A. [self presentModalViewController:fcVC animated:YES]; // "WORKS"
or
B. [self.navigationController pushViewController:fcVC animated:YES]; // "Doesn't work