rem: UpdateMailPaneConfig(true); 
add: { if (prefName == "mail.pane_config.dynamic") UpdateMailPaneConfig(true); else if (prefName == "mail.showFolderPaneColumns") UpdateFolderColumnVisibility(); } 
context:   observe: function(subject, topic, prefName) {    // verify that we're changing the mail pane config pref    if (topic == "nsPref:changed")      UpdateMailPaneConfig(true);  }
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/3a3e075b789b1f26bc0275d9a9fb316184a31ad2/msgMail3PaneWindow.js/buggy/mail/base/content/msgMail3PaneWindow.js