Bug 110087 [Markers] "Filters" menu doesn't remember the last selected filter
When I was playing with this it was a true pain. I'd change somes ettings to see what effect it had and then re-open the dialog to try some other settings I had to re-select my filter (it selects the first one always)...
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/provisional/views/markers/FiltersConfigurationDialog.java
private boolean andFilters = false;
	private Button removeButton;
	/**
	 * Create a new instance of the receiver on group.
	 * 
	 * @param parentShell
	 * @param generator
	 *            The MarkerContentGenerator to apply this to
	 */
	public FiltersConfigurationDialog(IShellProvider parentShell,
			MarkerContentGenerator generator) {
		super(parentShell);
		filterGroups = makeWorkingCopy(generator.getAllFilters());
		contentGenerator = generator;
		andFilters = generator.andFilters();
	}
	/**
	 * Return whether or not to AND the filters
	 * 
	 * @return boolean
	 */
	boolean andFilters() {
		return andFilters;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
	 */
	protected Control createDialogArea(Composite parent) {