When I launch Flash Builder 4.6 (on Win 7 64bit), I immediately get a fatal error that causes the program to cease loading.  The error message references the .log file which has the following info:

!ENTRY com.adobe.flexide.as.core 4 0 2012-05-28 15:31:36.225

!MESSAGE Could not disconnect updater

!STACK 0

java.lang.Exception

          at com.adobe.flexide.as.core.ui.outliner.ActionScriptOutlineUpdater.disc onnect(ActionScriptOutlineUpdater.java:122)

          at com.adobe.flexide.mxml.core.ui.outliner.MXMLCoreOutliner$ShowMXMLView Action.run(MXMLCoreOutliner.java:122)

          at com.adobe.flexide.editorcore.ui.outliner.AbstractStatefulAction.notif yChecked(AbstractStatefulAction.java:91)

          at com.adobe.flexide.editorcore.ui.outliner.AbstractStatefulAction.notif yCheckedListeners(AbstractStatefulAction.java:84)

          at com.adobe.flexide.editorcore.ui.outliner.AbstractStatefulAction.setCh ecked(AbstractStatefulAction.java:69)

          at com.adobe.flexide.editorcore.ui.outliner.AbstractStatefulAction.setCh ecked(AbstractStatefulAction.java:62)

          at com.adobe.flexide.editorcore.ui.outliner.AbstractStatefulAction.setCh eckedStateSetting(AbstractStatefulAction.java:55)

          at com.adobe.flexide.mxml.core.ui.outliner.MXMLCoreOutliner.createShowMX MLAction(MXMLCoreOutliner.java:284)

          at com.adobe.flexbuilder.mxml.editor.ui.outliner.MXMLOutliner.pageChange d(MXMLOutliner.java:53)

          at com.adobe.flexbuilder.editorcore.editor.CodeAndDesignEditor.pageChang e(CodeAndDesignEditor.java:630)

          at com.adobe.flexbuilder.mxml.editor.MXMLEditor.pageChange(MXMLEditor.ja va:717)

          at org.eclipse.ui.part.MultiPageEditorPart.setActivePage(MultiPageEditor Part.java:1067)

          at com.adobe.flexbuilder.editorcore.editor.CodeAndDesignEditor.setActive Page(CodeAndDesignEditor.java:751)

          at com.adobe.flexbuilder.mxml.editor.MXMLEditor.setActivePage(MXMLEditor .java:805)

          at com.adobe.flexbuilder.editorcore.editor.CodeAndDesignEditor.shiftToDe signEditor(CodeAndDesignEditor.java:1442)

          at com.adobe.flexbuilder.mxml.editor.MXMLEditor.shiftToDesignEditor(MXML Editor.java:1478)

          at com.adobe.flexbuilder.editorcore.editor.CodeAndDesignEditor$1.clicked (CodeAndDesignEditor.java:510)

          at com.adobe.flexide.editorcore.ui.controls.ButtonBar.clicked(ButtonBar. java:302)

          at com.adobe.flexide.editorcore.ui.controls.AbstractButton.sendClickEven t(AbstractButton.java:41)

          at com.adobe.flexide.editorcore.ui.controls.ToggleButton.handleChange(To ggleButton.java:79)

          at com.adobe.flexide.editorcore.ui.controls.ToggleButton.mouseDown(Toggl eButton.java:66)

          at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java: 191)

          at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)

          at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)

          at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)

          at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)

          at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)

          at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)

          at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)

          at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)

          at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.ja va:332)

          at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.jav a:667)

          at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)

          at com.adobe.flexbuilder.standalone.FlashBuilderApplication.start(FlashB uilderApplication.java:108)

          at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandl e.java:196)

          at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runAppli cation(EclipseAppLauncher.java:110)

          at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(Ec lipseAppLauncher.java:79)

          at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.ja va:344)

          at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.ja va:179)

          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

          at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

          at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

          at java.lang.reflect.Method.invoke(Unknown Source)

          at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)

          at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)

          at org.eclipse.equinox.launcher.Main.run(Main.java:1410)

Any ideas what I can do?  I've been using it for about 2 weeks without any problems. Then suddenly it started happening a couple days ago. After I clear the error message and launch Flash Builder again, it seems to load fine.  But now it tends to hang when I run the debugger... not always, just sometimes. I've let it sit for upwards of a half hour before killing the process manually.

Any ideas? Should I reload Flash Builder?