diff -r 4e99281470b3 editor.lib/src/org/netbeans/editor/GlyphGutter.java
--- a/editor.lib/src/org/netbeans/editor/GlyphGutter.java	Mon Mar 03 11:49:51 2008 +0100
+++ b/editor.lib/src/org/netbeans/editor/GlyphGutter.java	Fri Mar 14 01:13:38 2008 +0100
@@ -608,11 +608,11 @@ public class GlyphGutter extends JCompon
     /** Check whether it is not necessary to resize the gutter */
     protected void checkSize() {
         int count = getLineCount();
-        if (count > highestLineNumber) {
+        if (count != highestLineNumber) {
             highestLineNumber = count;
         }
         Dimension dim = getPreferredSize();
-        if (getWidthDimension() > dim.width ||
+        if (getWidthDimension() != dim.width ||
             getHeightDimension() > dim.height) {
             resize();
         }