diff -Nru pet-0.99.14.orig/cheap/cheap.cpp pet-0.99.14/cheap/cheap.cpp
--- pet-0.99.14.orig/cheap/cheap.cpp	2008-08-18 00:04:32.000000000 +0900
+++ pet-0.99.14/cheap/cheap.cpp	2008-08-18 17:48:14.000000000 +0900
@@ -438,7 +438,11 @@
   char *name = cheap_settings->value("vpm");
   if(name) {
     string file = find_file(name, ".vpm", s);
-    mrs_initialize(s, file.c_str());
+	if(file.empty()) {
+		fprintf(ferr, "\n%s.vpm not found\n", name);
+		exit(1);
+	}
+	mrs_initialize(s, file.c_str());
   } else mrs_initialize(s, NULL);
 
 #endif
@@ -447,7 +451,11 @@
   char *name2 = cheap_settings->value("vpm");
   if (name2) {
     string file = find_file(name2, ".vpm", s);
-    vpm->read_vpm(file);
+	if(file.empty()) {
+		fprintf(ferr, "\n%s.vpm not found\n", name2);
+		exit(1);
+	}
+	vpm->read_vpm(file);
   }
 
 #ifdef HAVE_ECL