I did and it works. But.. it is set the same (both values to false) in older code.
In the older code I use a second activity. The title does not show on the main activity as it is set to false.
On that second activity the titlebar is shown. Without an icon.
Now that I have the title bar back,
The icon is part of the holo theme (Android 4 theme). If you set targetSdkVersion to 4 instead of 14, in the manifest editor, then the old style will be used.