Just a note that the quickbook docs don't build as a PDF due to XML validation failures at the FO stage: fop.render.pdf ..\..\bin.v2\tools\quickbook\doc\msvc-10.0\debug\link-static\threading-multi\quickbook.pdf M:/download/programs/xep/xep.bat ..\..\bin.v2\tools\quickbook\doc\msvc-10.0\debug\link-static\threading-multi\quickbook.fo ..\..\bin.v2\tools\quickbook\doc\msvc-10.0\debug\link-static\threading-multi\quickbook.pdf (document [system-id file:/M:/data/boost/branches/release/doc/pdf/../../bin.v2/tools/quickbook/doc/msvc-10.0/debug/link-static/threading-multi/quickbook.fo] (validate [error] Element 'fo:block' cannot be a child of 'fo:root'. [error] Element 'fo:block' cannot be a child of 'fo:root'. [error] Element 'fo:block' cannot be a child of 'fo:root'. [error] Attribute 'space-before.optimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.minimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.maximum' cannot occur at element 'fo:block'. [error] Attribute 'id' cannot occur at element 'fo:inline'. [error] Attribute 'break-before' cannot occur at element 'fo:block'. [error] Attribute 'id' cannot occur at element 'fo:block'. [error] Attribute 'margin-left' cannot occur at element 'fo:block'. [error] Attribute 'font-family' cannot occur at element 'fo:block'. [error] Attribute 'keep-together.within-column' cannot occur at element 'fo:block'. [error] Attribute 'keep-with-next.within-column' cannot occur at element 'fo:block'. [error] Attribute 'font-family' cannot occur at element 'fo:block'. [error] Attribute 'font-weight' cannot occur at element 'fo:block'. [error] Attribute 'keep-with-next.within-column' cannot occur at element 'fo:block'. [error] Attribute 'space-before.minimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.optimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.maximum' cannot occur at element 'fo:block'. [error] Attribute 'text-align' cannot occur at element 'fo:block'. [error] Attribute 'start-indent' cannot occur at element 'fo:block'. [error] Attribute 'marker-class-name' cannot occur at element 'fo:marker'. [error] Element 'fo:marker' should be a descendant of 'flow'. [error] Attribute 'font-size' cannot occur at element 'fo:block'. [error] Attribute 'id' cannot occur at element 'fo:inline'. [error] Attribute 'internal-destination' cannot occur at element 'fo:basic-link'. [error] Attribute 'color' cannot occur at element 'fo:inline'. [error] Attribute 'space-before.optimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.minimum' cannot occur at element 'fo:block'. [error] Attribute 'space-before.maximum' cannot occur at element 'fo:block'. [error] Attribute 'id' cannot occur at element 'fo:block'. [error] Attribute 'border-color' cannot occur at element 'fo:block'. [error] Attribute 'border-width' cannot occur at element 'fo:block'. [error] Attribute 'border-style' cannot occur at element 'fo:block'. [error] Attribute 'padding-left' cannot occur at element 'fo:block'. [error] Attribute 'padding-right' cannot occur at element 'fo:block'. [error] Attribute 'padding-top' cannot occur at element 'fo:block'. [error] Attribute 'padding-bottom' cannot occur at element 'fo:block'. [error] Attribute 'widows' cannot occur at element 'fo:block'. [error] Attribute 'orphans' cannot occur at element 'fo:block'. [error] Attribute 'font-size' cannot occur at element 'fo:block'. [error] Attribute 'hyphenate' cannot occur at element 'fo:block'. etc. Any ideas? Thanks, John.