--- a/org.symbian.tools.wrttools.previewer/src/org/symbian/tools/wrttools/previewer/preview/AbstractPreviewPage.java	Fri Jan 29 13:27:41 2010 -0800
+++ b/org.symbian.tools.wrttools.previewer/src/org/symbian/tools/wrttools/previewer/preview/AbstractPreviewPage.java	Fri Jan 29 17:49:30 2010 -0800
@@ -74,7 +74,9 @@
 
 	@Override
 	public void setFocus() {
-		browser.setFocus();
+		if (browser != null && !browser.isDisposed()) {
+			browser.setFocus();
+		}
 	}
 	
 	private boolean refreshScheduled = false;