diff -up scim-pinyin-0.5.91/src/scim_pinyin_phrase.cpp.fix-load scim-pinyin-0.5.91/src/scim_pinyin_phrase.cpp
--- scim-pinyin-0.5.91/src/scim_pinyin_phrase.cpp.fix-load	2007-11-15 15:06:10.000000000 +0800
+++ scim-pinyin-0.5.91/src/scim_pinyin_phrase.cpp	2007-11-15 15:06:27.000000000 +0800
@@ -351,17 +351,24 @@ PinyinPhraseLib::input (std::istream &is
 						std::istream &is_pylib,
 						std::istream &is_idx)
 {
-	if (m_phrase_lib.input (is_lib)) {
-		if (is_idx && input_pinyin_lib (*m_validator, is_pylib)) {
-			if (!input_indexes (is_idx)) {
+	is_lib.exceptions (std::ifstream::failbit);
+	is_pylib.exceptions (std::ifstream::failbit);
+	is_idx.exceptions (std::ifstream::failbit);
+	try {
+		if (m_phrase_lib.input (is_lib)) {
+			if (is_idx && input_pinyin_lib (*m_validator, is_pylib)) {
+				if (!input_indexes (is_idx)) {
+					create_pinyin_index ();
+					return true;
+				}
+			} else {
 				create_pinyin_index ();
 				return true;
 			}
-		} else {
-			create_pinyin_index ();
 			return true;
 		}
-		return true;
+	} catch (std::ifstream::failure e) {
+		std::cerr << "Reading pinyin phrase lib failed" << std::endl;
 	}
 	return false;
 }
diff -up scim-pinyin-0.5.91/src/scim_pinyin.cpp.fix-load scim-pinyin-0.5.91/src/scim_pinyin.cpp
--- scim-pinyin-0.5.91/src/scim_pinyin.cpp.fix-load	2005-08-08 14:11:16.000000000 +0800
+++ scim-pinyin-0.5.91/src/scim_pinyin.cpp	2007-11-15 15:06:20.000000000 +0800
@@ -1561,83 +1561,92 @@ PinyinTable::input (std::istream &is)
     bool binary;
 
     if (!is) return false;
-    
-    is.getline (header, 40);
 
-    if (strncmp (header,
-        scim_pinyin_table_text_header,
-        strlen (scim_pinyin_table_text_header)) == 0) {
-        binary = false;
-    } else if (strncmp (header,
-        scim_pinyin_table_binary_header,
-        strlen (scim_pinyin_table_binary_header)) == 0) {
-        binary = true;
-    } else {
-        return false;
-    }
+    is.exceptions (std::ifstream::failbit);
 
-    is.getline (header, 40);
-    if (strncmp (header, scim_pinyin_table_version, strlen (scim_pinyin_table_version)) != 0)
+    try {
+         
+         is.getline (header, 40);
+
+         if (strncmp (header,
+             scim_pinyin_table_text_header,
+             strlen (scim_pinyin_table_text_header)) == 0) {
+             binary = false;
+         } else if (strncmp (header,
+             scim_pinyin_table_binary_header,
+             strlen (scim_pinyin_table_binary_header)) == 0) {
+             binary = true;
+         } else {
+             return false;
+         }
+
+         is.getline (header, 40);
+         if (strncmp (header, scim_pinyin_table_version, strlen (scim_pinyin_table_version)) != 0)
+             return false;
+
+         uint32 i;
+         uint32 n;
+         PinyinEntryVector::iterator ev;
+
+         if (!binary) {
+             is >> n;
+
+             // load pinyin table
+             for (i=0; i<n; i++) {
+                 PinyinEntry entry (*m_validator, is, false);
+
+                 if (!m_custom.use_tone) {
+                     entry.set_key (PinyinKey (entry.get_key ().get_initial (),
+                                                   entry.get_key ().get_final (),
+                                                   SCIM_PINYIN_ZeroTone));
+                 }
+
+                 if (entry.get_key().get_final() == SCIM_PINYIN_ZeroFinal) {
+                     std::cerr << "Invalid entry: " << entry << "\n";
+                 } else {
+                     if ((ev = find_exact_entry (entry)) == m_table.end())
+                         m_table.push_back (entry);
+                     else {
+                         for (uint32 i=0; i<entry.size(); i++) {
+                             ev->insert (entry.get_char_with_frequency_by_index (i));
+                         }
+                     }
+                 }
+             }
+         } else {
+             unsigned char bytes [8];
+             is.read ((char*) bytes, sizeof (unsigned char) * 4);
+             n = scim_bytestouint32 (bytes);
+
+             // load pinyin table
+             for (i=0; i<n; i++) {
+                 PinyinEntry entry (*m_validator, is, true);
+
+                 if (!m_custom.use_tone) {
+                     entry.set_key (PinyinKey (entry.get_key ().get_initial (),
+                                                   entry.get_key ().get_final (),
+                                                   SCIM_PINYIN_ZeroTone));
+                 }
+
+                 if (entry.get_key().get_final() == SCIM_PINYIN_ZeroFinal) {
+                     std::cerr << "Invalid entry: " << entry << "\n";
+                 } else {
+                     if ((ev = find_exact_entry (entry)) == m_table.end())
+                         m_table.push_back (entry);
+                     else {
+                         for (uint32 i=0; i<entry.size(); i++) {
+                             ev->insert (entry.get_char_with_frequency_by_index (i));
+                         }
+                     }
+                 }
+             }
+         }
+         sort ();
+    }
+    catch (std::ifstream::failure e) {
+        std::cerr << "Reading pinyin table failed" << std::endl;
         return false;
-
-    uint32 i;
-    uint32 n;
-    PinyinEntryVector::iterator ev;
-
-    if (!binary) {
-        is >> n;
-
-        // load pinyin table
-        for (i=0; i<n; i++) {
-            PinyinEntry entry (*m_validator, is, false);
-
-            if (!m_custom.use_tone) {
-                entry.set_key (PinyinKey (entry.get_key ().get_initial (),
-                                              entry.get_key ().get_final (),
-                                              SCIM_PINYIN_ZeroTone));
-            }
-
-            if (entry.get_key().get_final() == SCIM_PINYIN_ZeroFinal) {
-                std::cerr << "Invalid entry: " << entry << "\n";
-            } else {
-                if ((ev = find_exact_entry (entry)) == m_table.end())
-                    m_table.push_back (entry);
-                else {
-                    for (uint32 i=0; i<entry.size(); i++) {
-                        ev->insert (entry.get_char_with_frequency_by_index (i));
-                    }
-                }
-            }
-        }
-    } else {
-        unsigned char bytes [8];
-        is.read ((char*) bytes, sizeof (unsigned char) * 4);
-        n = scim_bytestouint32 (bytes);
-
-        // load pinyin table
-        for (i=0; i<n; i++) {
-            PinyinEntry entry (*m_validator, is, true);
-
-            if (!m_custom.use_tone) {
-                entry.set_key (PinyinKey (entry.get_key ().get_initial (),
-                                              entry.get_key ().get_final (),
-                                              SCIM_PINYIN_ZeroTone));
-            }
-
-            if (entry.get_key().get_final() == SCIM_PINYIN_ZeroFinal) {
-                std::cerr << "Invalid entry: " << entry << "\n";
-            } else {
-                if ((ev = find_exact_entry (entry)) == m_table.end())
-                    m_table.push_back (entry);
-                else {
-                    for (uint32 i=0; i<entry.size(); i++) {
-                        ev->insert (entry.get_char_with_frequency_by_index (i));
-                    }
-                }
-            }
-        }
     }
-    sort ();
 
     return true;
 }