Upgrade to iPhone 3.0 sdk and now simulator shows blank screen

Question

I have an iPhone app that uses an UITabBarController, which contains two UINavigationControllers, each of which in turn contains one or more TableViewControllers (actually,

Answer 1

I fixed mine by changing the mode from Scale To Fill to Center. Before I changed the alpha and all it did was change the background to black. I figured perhaps the actual values were not scaling correctly, and I was correct. Again, simply change the mode from Scale To Fill to Center and voilà, it should work.