I've skim read around the subject on http://developer.android.com/
Picked up the sample code :
Intent intent = new Intent(this, SetupMenu.class);
startActivity(intent);
Dropped this in to my onClick() method.
The class "SetupMenu" is a bog standard activity with a simple layout.
When I tried running this, I got an error in logcat:-
05-08 20:58:18.226: ERROR/AndroidRuntime(936): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.kalugin.android/com.kalugin.android.SetupMenu};
have you declared this activity in your AndroidManifest.xml?
OK, so I forgot to define my Activity in the AndroidManifest.xml file. When I fixed that, the new screen fired up when I clicked on the button that I wired it up to.
Phew! That was a lot easier than getting the ListView & Checkbox thing working.