Index: kdeprint/kprinterimpl.cpp
===================================================================
RCS file: /home/kde/kdelibs/kdeprint/kprinterimpl.cpp,v
retrieving revision 1.58
diff -u -3 -b -r1.58 kprinterimpl.cpp
--- kdeprint/kprinterimpl.cpp	15 Mar 2004 10:27:38 -0000	1.58
+++ kdeprint/kprinterimpl.cpp	28 Sep 2004 22:18:14 -0000
@@ -507,20 +507,15 @@
 				QStringList	flist = KXmlCommandManager::self()->autoConvert(mime, primaryMimeType);
 				if (flist.count() == 0)
 				{
-					if (KMessageBox::warningYesNo(NULL,
-								      i18n("No appropriate filter was found to convert the file "
-								           "format %1 into %2. Do you want to print the "
-									   "file using its original format?").arg(mime).arg(primaryMimeType),
-								      QString::null,
-								      i18n("Print"),
-								      i18n("Skip")) == KMessageBox::No)
-					{
+					KMessageBox::error(NULL,
+							i18n("<qt>No appropriate filter was found to convert the file format %1 into %2.\n"
+							     "Go to <i>System Options -> Commands</i> to look through the list of "
+							     "possible filters and to see the external programs they require to be " 
+							     "available.</qt>").arg(mime).arg(primaryMimeType),
+							      i18n("Print"));
 						if (flag)
 							QFile::remove(*it);
 						it = files.remove(it);
-					}
-					else
-						++it;
 					continue;
 				}
 				QStringList	l(*it);
Index: kdeprint/kxmlcommand.cpp
===================================================================
RCS file: /home/kde/kdelibs/kdeprint/kxmlcommand.cpp,v
retrieving revision 1.21
diff -u -3 -b -r1.21 kxmlcommand.cpp
--- kdeprint/kxmlcommand.cpp	15 Mar 2004 10:27:38 -0000	1.21
+++ kdeprint/kxmlcommand.cpp	28 Sep 2004 22:18:15 -0000
@@ -733,6 +733,10 @@
 		const QValueList<KXmlCommand*>	l = d->m_mimemap[mimesrc];
 		for (QValueList<KXmlCommand*>::ConstIterator it=l.begin(); it!=l.end(); ++it)
 		{
+			// check filter availability
+			if (!KdeprintChecker::check((*it)->requirements()))
+				continue;
+
 			// direct filter: shortest path => return immediately
 			if ((*it)->mimeType() == mimedest)
 			{