bug#4045: 23.1.50; Docview mode links unclickable

I cannot click the blue links in Docview mode.


In GNU Emacs 23.1.50.1 (i486-pc-linux-gnu, GTK+ Version 2.16.5)
 of 2009-07-31 on elegiac, modified by Debian
 (emacs-snapshot package, version 1:20090730-1)
Windowing system distributor `The X.Org Foundation', version 11.0.10602901
configured using `configure  '--build' 'i486-linux-gnu' '--host' 'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.1.50/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.1.50/site-lisp:/usr/share/emacs/site-lisp' '--with-x=yes' '--with-x-toolkit=gtk' 'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g -Wl,--as-needed' 'CPPFLAGS=''
Reading http://portal.gsdi.org/files/?artifact_id=474...done
Reading http://portal.gsdi.org/files/index.php?artifact_id=474...done
Wrote /tmp/docview1000/index.php?artifact_id=474