Cannot connect to update center

I can't connect to JSC2 Update 1 Update center, even though i've setup the proxy setting and proxy port.. Last week I can connect to the Update center, it's prompt a username and password, but now I can't connect.
Is there any log file for updating JSC2 Update1? I;ve tried delete .Creator folder on my Documents and Settings..
What's wrong with my JSC?

I got the same problem, when I saw the JSC Log Windows, it said like this..
Annotation: URL: http://www.netbeans.org/updates/creator/2_1/en/catalog_Windows_x86.xml?unique=1854890396
java.io.IOException: Server returned HTTP response code: 407 for URL: http://www.netbeans.org/updates/creator/2_1/en/catalog_Windows_x86.xml?unique=1854890396
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1149)
        at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:973)
        at com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(XMLVersionDetector.java:184)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:798)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
        at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
        at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:250)
        at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292)
        at org.netbeans.updater.XMLUtil.parse(XMLUtil.java:73)
        at org.netbeans.modules.autoupdate.XMLUpdates.parseDocumentImpl(XMLUpdates.java:359)
[catch] at org.netbeans.modules.autoupdate.XMLUpdates.parseDocument(XMLUpdates.java:335)
        at org.netbeans.modules.autoupdate.XMLUpdates.access$500(XMLUpdates.java:38)
        at org.netbeans.modules.autoupdate.XMLUpdates$2.run(XMLUpdates.java:190)
        at org.openide.util.Task.run(Task.java:189)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:330)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:721)anyone can help us?
Message was edited by:
thunderbird

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