diff -ru TeXmacs-1.0.7.16-src.orig/src/Plugins/Ghostscript/gs_utilities.cpp TeXmacs-1.0.7.16-src/src/Plugins/Ghostscript/gs_utilities.cpp
--- TeXmacs-1.0.7.16-src.orig/src/Plugins/Ghostscript/gs_utilities.cpp	2012-07-09 16:33:21.000000000 +0200
+++ TeXmacs-1.0.7.16-src/src/Plugins/Ghostscript/gs_utilities.cpp	2012-11-07 06:24:53.290583215 +0100
@@ -42,7 +42,7 @@
 bool
 gs_image_size_sub (string buf, int& w_pt, int& h_pt) {
   int pos= search_forwards ("\n%%BoundingBox: ", buf);
-  if (pos < 0) search_forwards ("%%BoundingBox: ", buf);
+  if (pos < 0) pos = search_forwards ("%%BoundingBox: ", buf);
   if (pos < 0) return false;
   if (buf[pos] == '\n') pos++;
   bool ok= read (buf, pos, "%%BoundingBox: ");
@@ -63,6 +63,7 @@
   if (!ok) return false;
   w_pt= x2-x1;
   h_pt= y2-y1;
+  if (h_pt==0 && w_pt==0) h_pt = 1;
   return true;
 }
 
@@ -80,7 +81,7 @@
   if (!err && gs_image_size_sub (buf, w_pt, h_pt)) return;
   cerr << "TeXmacs Cannot read image file '" << image << "'"
        << " in gs_image_size" << LF;
-  w_pt= 0; h_pt= 0;
+  w_pt= 0; h_pt= 1;
 }
 
 void ps_bounding_box (url image, int& x1, int& y1, int& x2, int& y2);