diff --git a/src/graphics/ChangeLog b/src/graphics/ChangeLog
index 2ead6a5ec8..8d81e9cca3 100644
--- a/src/graphics/ChangeLog
+++ b/src/graphics/ChangeLog
@@ -1,3 +1,7 @@
+2002-10-18  Angus Leeming  <leeming@lyx.org>
+
+	* GraphicsCacheItem.C (findTargetFormat): add debug message.
+
 2002-09-10  Jean-Marc Lasgouttes  <Jean-Marc.Lasgouttes@inria.fr>
 
 	* GraphicsConverter.C (build_script): do not use ChangeExtension
diff --git a/src/graphics/GraphicsCacheItem.C b/src/graphics/GraphicsCacheItem.C
index de419e6198..a8de1f2398 100644
--- a/src/graphics/GraphicsCacheItem.C
+++ b/src/graphics/GraphicsCacheItem.C
@@ -434,6 +434,10 @@ string const findTargetFormat(string const & from)
 	for (; it2 != end; ++it2) {
 		if (graphics_converter.isReachable(from, *it2))
 			return *it2;
+		else
+			lyxerr[Debug::GRAPHICS]
+				<< "Unable to convert from " << from
+				<< " to " << *it2 << std::endl;
 	}
 
 	// Failed!