Open RRC Document fails

Hi,
i have a problem to open a defined RRC Document. When i try to open a document, it takes 5 minutes to load it and then i get an error message, saying "ichtext document cannot be open and i should check the .log file". Here what the .log file says:

org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:3803)
at org.eclipse.swt.SWT.error(SWT.java:3695)
at org.eclipse.swt.SWT.error(SWT.java:3666)
at org.eclipse.swt.graphics.Image.init(Image.java:1648)
at org.eclipse.swt.graphics.Image.init(Image.java:1943)
at org.eclipse.swt.graphics.Image.<init>(Image.java:450)
at org.eclipse.jface.resource.ImageDescriptor.createImage(ImageDescriptor.java:291)
at org.eclipse.jface.resource.ImageDescriptor.createResource(ImageDescriptor.java:165)
at org.eclipse.jface.resource.DeviceResourceManager.allocate(DeviceResourceManager.java:56)
at org.eclipse.jface.resource.AbstractResourceManager.create(AbstractResourceManager.java:88)
at org.eclipse.jface.resource.LocalResourceManager.allocate(LocalResourceManager.java:82)
at org.eclipse.jface.resource.AbstractResourceManager.create(AbstractResourceManager.java:88)
at org.eclipse.jface.resource.ResourceManager.createImage(ResourceManager.java:172)
at com.ibm.rdm.ui.richtext.editparts.RichTextFigureFactory.createFigure(RichTextFigureFactory.java:141)
at com.ibm.rdm.ui.richtext.ex.editparts.ExtendedRichTextFigureFactory.createFigure(ExtendedRichTextFigureFactory.java:71)
at com.ibm.rdm.ui.richtext.editparts.RichTextFigureFactory.build(RichTextFigureFactory.java:62)
at com.ibm.rdm.ui.richtext.editparts.RichTextFigureFactory.build(RichTextFigureFactory.java:74)
at com.ibm.rdm.ui.richtext.editparts.RichTextFigureFactory.build(RichTextFigureFactory.java:74)
at com.ibm.rdm.ui.richtext.ex.editparts.ExtendedRichTextFigureFactory.buildFigure(ExtendedRichTextFigureFactory.java:35)
at com.ibm.rdm.ui.richtext.ex.editparts.EmbeddedRichtextEditPart.createRichtextFigure(EmbeddedRichtextEditPart.java:152)
at com.ibm.rdm.ui.richtext.ex.editparts.EmbeddedRichtextEditPart.createFigure(EmbeddedRichtextEditPart.java:124)
at org.eclipse.gef.editparts.AbstractGraphicalEditPart.getFigure(AbstractGraphicalEditPart.java:452)
at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addChildVisual(AbstractGraphicalEditPart.java:204)
at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:197)
at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:727)
at com.ibm.rdm.ui.gef.editparts.EMFEditPart.refreshVisuals(EMFEditPart.java:162)
at com.ibm.rdm.ui.richtext.editparts.FlowTypePart.refreshVisuals(FlowTypePart.java:89)
at com.ibm.rdm.ui.richtext.editparts.BodyEditPart.refreshVisuals(BodyEditPart.java:156)
at com.ibm.rdm.ui.gef.editparts.EMFEditPart.refresh(EMFEditPart.java:138)
at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:235)
at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addNotify(AbstractGraphicalEditPart.java:219)
at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:198)
at org.eclipse.gef.editparts.SimpleRootEditPart.setContents(SimpleRootEditPart.java:101)
at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:601)
at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:610)
at com.ibm.rdm.ui.gef.contexts.GraphicalViewerContext.hookControl(GraphicalViewerContext.java:109)
at com.ibm.rdm.ui.richtext.contexts.RichTextContext.hookControl(RichTextContext.java:158)
at com.ibm.rdm.ui.gef.contexts.GraphicalViewerContext.createPartControl(GraphicalViewerContext.java:64)
at com.ibm.rdm.ui.richtext.ex.parts.RootTextContext.doCreatePartControl(RootTextContext.java:121)
at com.ibm.rdm.ui.gef.contexts.RevisionContainerRootContext.createPartControl(RevisionContainerRootContext.java:56)
at com.ibm.rdm.ui.gef.contexts.RootContextEditor.createPartControl(RootContextEditor.java:163)
at com.ibm.rdm.ui.richtext.ex.parts.RichTextEditor.createPartControl(RichTextEditor.java:32)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:661)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:428)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:594)
at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:266)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2820)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2729)
at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2721)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2673)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2668)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2652)
at com.ibm.rdm.ui.utils.DocumentUtil.openEditor(DocumentUtil.java:351)
at com.ibm.rdm.ui.server.editor.input.RepositoryEditorInputHelper.openEditorFor(RepositoryEditorInputHelper.java:63)
at com.ibm.rdm.ui.gef.editor.input.EditorInputHelper.openEditor(EditorInputHelper.java:37)
at com.ibm.rdm.ui.gef.editor.input.EditorInputHelper.openEditor(EditorInputHelper.java:29)