Swing JComboBox causes scrolling problems in applet

I have an applet with a JPanel that contains a JComboBox that lists font selections for a JTextPane in a JPanel below it. It contains about 12 items, of which only five are visible at a time. If I choose any of the first five and scroll the page on which the applet is running, there are no issues. However, if I scroll the page after scrolling down the list to the sixth item, regardless of whether or not I actually select it, it causes the graphics in the applet to corrupt. The JComboBox code is:
private JComboBox getFontFaceCB() {
               String[] fontNames = new String[fontlist.length];
               for (int i = 0; i < fontlist.length; i++){
                    fontNames[i] = fontlist.getFamily();
               if (fontFaceCB == null) {
                    fontFaceCB = new JComboBox(fontNames);
                    fontFaceCB.setBackground(Color.white);
                    fontFaceCB.setPreferredSize(new Dimension(150, 30));
                    fontFaceCB.setMaximumRowCount(5);
                    fontFaceCB.setSelectedIndex(0);
                    fontFaceCB.addItemListener(new java.awt.event.ItemListener() {
                         public void itemStateChanged(java.awt.event.ItemEvent e) {
                                        currentFont = fontlist[fontFaceCB.getSelectedIndex()];
                                        StyleConstants.setFontFamily(textStyles, currentFont.getFamily());
                                        jTextPane.setCharacterAttributes(textStyles, true);
                                        viewWidget.repaint();
               return fontFaceCB;
          }This also happens if I set the default index to something that one must scroll down to reach (e.g. the sixth index) I was wondering if anyone else has come across this issue and has any idea as to how this may be resolved.
Also, if the window is minimized, resized, etc. the graphics also corrupt, but only after the aforementioned condition.
Edited by: BANZ111 on Dec 12, 2007 3:59 PM

I have found the solution:
I had lightweight components intertwined with heavyweight ones, which, until now, I never regarded as being a possible source of problems. Apparently, when you scroll down a JComboBox, it changes from light to heavy weight? At any rate, I found this with a lot of other useful tips here:
http://72.5.124.55/javase/6/webnotes/trouble/TSG-Desktop/html/gchzf.html#gdldq
Perhaps this can be of use to anyone else who gets a similar problem.

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