RCP VIEW -visual editor

Estou desenvolvendo interfaces em view com visual editor, mao no log de erros sempre surge na msg;
alguem já passou por isso??
para esse teste eu criei uma aplicação hello world sugerida pela eclipse e apos crei um classe viaul rcp adicionei apenas uma label e um text field, o problema é que se eu prosseguir, as telas maiores perdem totalmente o desenho inicial.
segue texto do log

eclipse.buildId=M20060629-1905
java.version=1.6.0_02
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=pt_BR
Framework arguments: Xms40m -Xmx512m
Command-line arguments: -os win32 -ws win32 -arch x86 Xms40m -Xmx512m

Error
Mon Sep 17 11:36:54 BRT 2007
Exception thrown.

java.lang.ArrayIndexOutOfBoundsException: -1
at org.eclipse.emf.common.util.BasicEList.get(BasicEList.java:514)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.getEObjectForURIFragmentRootSegment(ResourceImpl.java:642)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.getEObject(ResourceImpl.java:692)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.getEObject(ResourceImpl.java:671)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.setValueFromId(XMLHandler.java:2511)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.setAttribValue(XMLHandler.java:2439)
at org.eclipse.emf.ecore.xmi.impl.SAXXMIHandler.handleObjectAttribs(SAXXMIHandler.java:74)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFactory(XMLHandler.java:1929)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromTypeName(XMLHandler.java:1833)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObject(XMLHandler.java:1768)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleFeature(XMLHandler.java:1576)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:876)
at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:82)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:854)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:626)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:179)
at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:179)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1089)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:895)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:249)
at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl.demandLoad(ProjectResourceSetImpl.java:83)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:264)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:390)
at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl.getResource(ProjectResourceSetImpl.java:262)
at org.eclipse.ve.internal.java.codegen.util.VEModelCacheUtility.doLoadFromCache(VEModelCacheUtility.java:103)
at org.eclipse.ve.internal.java.codegen.core.VEModelInstance.createComposition(VEModelInstance.java:100)
at org.eclipse.ve.internal.java.codegen.core.JavaSourceTranslator.reConnect(JavaSourceTranslator.java:1134)
at org.eclipse.ve.internal.java.codegen.core.JavaSourceTranslator.decodeDocument(JavaSourceTranslator.java:910)
at org.eclipse.ve.internal.java.codegen.core.JavaSourceTranslator.loadModel(JavaSourceTranslator.java:597)
at org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEditorPart$Setup.run(JavaVisualEditorPart.java:1978)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)