diff --git a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/preferences/PropertyPageDefsTab.java b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/preferences/PropertyPageDefsTab.java
index 9fb25267168..117add75dbd 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/preferences/PropertyPageDefsTab.java
+++ b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/preferences/PropertyPageDefsTab.java
@@ -31,7 +31,6 @@ public class PropertyPageDefsTab extends AbstractCPropertyTab {
     private Button show_mng;
     private Button show_tool;
     private Button show_exp;
-    private Button center_dlg;
 
     private Button b_0;
     private Button b_1;
@@ -67,10 +66,6 @@ public class PropertyPageDefsTab extends AbstractCPropertyTab {
         show_exp.setText(UIMessages.getString("PropertyPageDefsTab.10")); //$NON-NLS-1$
         show_exp.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 
-		center_dlg = new Button(usercomp, SWT.CHECK);
-		center_dlg.setText(UIMessages.getString("PropertyPageDefsTab.15")); //$NON-NLS-1$
-		center_dlg.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
- 
         Group saveGrp = new Group(usercomp, SWT.NONE);
         saveGrp.setText(UIMessages.getString("PropertyPageDefsTab.11")); //$NON-NLS-1$
         saveGrp.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
@@ -110,7 +105,6 @@ public class PropertyPageDefsTab extends AbstractCPropertyTab {
 		show_mng.setSelection(!CDTPrefUtil.getBool(CDTPrefUtil.KEY_NOMNG));
 		show_tool.setSelection(!CDTPrefUtil.getBool(CDTPrefUtil.KEY_NOTOOLM));
 		show_exp.setSelection(CDTPrefUtil.getBool(CDTPrefUtil.KEY_EXPORT));
-		center_dlg.setSelection(!CDTPrefUtil.getBool(CDTPrefUtil.KEY_NOCENTER));
 		
 		switch (CDTPrefUtil.getInt(CDTPrefUtil.KEY_DISC_NAMES)) {
 			case CDTPrefUtil.DISC_NAMING_UNIQUE_OR_BOTH: b_0.setSelection(true); break;
@@ -132,7 +126,6 @@ public class PropertyPageDefsTab extends AbstractCPropertyTab {
 		CDTPrefUtil.setBool(CDTPrefUtil.KEY_NOMNG, !show_mng.getSelection());
 		CDTPrefUtil.setBool(CDTPrefUtil.KEY_NOTOOLM, !show_tool.getSelection());
 		CDTPrefUtil.setBool(CDTPrefUtil.KEY_EXPORT, show_exp.getSelection());
-		CDTPrefUtil.setBool(CDTPrefUtil.KEY_NOCENTER, !center_dlg.getSelection());
 		int x = 0;
 		if (b_1.getSelection()) x = 1;
 		else if (b_2.getSelection()) x = 2;
@@ -151,7 +144,6 @@ public class PropertyPageDefsTab extends AbstractCPropertyTab {
 		show_mng.setSelection(true);
 		show_tool.setSelection(true);
 		show_exp.setSelection(false);
-		center_dlg.setSelection(true);
 		b_0.setSelection(true);
 		b_1.setSelection(false);
 		b_2.setSelection(false);
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/newui/AbstractPropertyDialog.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/newui/AbstractPropertyDialog.java
index f8a8c27480f..121ca907af2 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/newui/AbstractPropertyDialog.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/newui/AbstractPropertyDialog.java
@@ -67,13 +67,11 @@ public abstract class AbstractPropertyDialog extends Dialog {
 	 		createDialogArea(shell);
 	 		
 	 		// center window
-	 		if (!CDTPrefUtil.getBool(CDTPrefUtil.KEY_NOCENTER)) {
-	 			Rectangle r1 = shell.getDisplay().getBounds();
-	 			Rectangle r2 = shell.getBounds();
-	 			int x = r1.width / 2 - r2.width / 2;
-	 			int y = r1.height / 2 - r2.height / 2;
-	 			shell.setBounds(x, y, r2.width, r2.height);
-	 		}
+	 		Rectangle r1 = parent.getBounds();
+	 		Rectangle r2 = shell.getBounds();
+	 		int x = r1.x + (r1.width - r2.width) / 2;
+	 		int y = r1.y + (r1.height - r2.height) / 2;
+	 		shell.setBounds(x, y, r2.width, r2.height);
 	 		
 		 	shell.open();
 		 	Display display = parent.getDisplay();
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/newui/CDTPrefUtil.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/newui/CDTPrefUtil.java
index aeba79a77ee..24588536e61 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/newui/CDTPrefUtil.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/newui/CDTPrefUtil.java
@@ -27,7 +27,6 @@ public class CDTPrefUtil {
 	public static final String KEY_DTREE   = "properties.data.hierarchy.enable"; //$NON-NLS-1$
 	public static final String KEY_NOTOOLM   = "properties.toolchain.modification.disable"; //$NON-NLS-1$
 	public static final String KEY_EXPORT   = "properties.export.page.enable"; //$NON-NLS-1$
-	public static final String KEY_NOCENTER = "properties.dialog.center.disable"; //$NON-NLS-1$
 	// string keys
 	public static final String KEY_PREFTC  = "wizard.preferred.toolchains";  //$NON-NLS-1$
 	// integer keys