diff --git a/honoka/src/honoka_imengine.cpp b/honoka/src/honoka_imengine.cpp
index dd4d5e7..e9c3177 100644
--- a/honoka/src/honoka_imengine.cpp
+++ b/honoka/src/honoka_imengine.cpp
@@ -230,7 +230,7 @@
     m_predictor = predictors.at(0);
     
     m_multi = new MultiConvertor(_scim_config,this);
-    m_multi->connect();
+//    m_multi->connect();
     
     // ������ء�
     init();
@@ -1250,6 +1250,7 @@
         if (!m_convertor->connect()) {
             update_aux_string(utf8_mbstowcs(String(_("could not connect to server."))));
             show_aux_string();
+            m_convertor = m_def_convertor;
             return;
         }
     }
@@ -1258,6 +1259,7 @@
     if (m_convertor->ren_conversion() == -1) {
         update_aux_string(utf8_mbstowcs(String(_("could not connect to server."))));
         show_aux_string();
+        m_convertor = m_def_convertor;
         return;
     }
     m_convList.kouho.clear();
diff --git a/honoka/src/multiconvertor.cpp b/honoka/src/multiconvertor.cpp
index d626083..0fd362b 100644
--- a/honoka/src/multiconvertor.cpp
+++ b/honoka/src/multiconvertor.cpp
@@ -48,6 +48,7 @@
 
 bool MultiConvertor::isConnected() {
     for(unsigned int i = 0;i < instance->convertors.size();i ++) {
+        if (nuc.find(instance->convertors[i]) != nuc.end()) continue;
         if (!instance->convertors[i]->isConnected())
             return false;
     }
@@ -56,17 +57,21 @@
 
 void MultiConvertor::reset(){
     for(unsigned int i = 0;i < instance->convertors.size();i ++) {
+        if (nuc.find(instance->convertors[i]) != nuc.end()) continue;
         instance->convertors[i]->reset();
     }
 }
 
 void MultiConvertor::setYomiText(WideString yomi) {
     for(unsigned int i = 0;i < instance->convertors.size();i ++) {
+        if (nuc.find(instance->convertors[i]) != nuc.end()) continue;
         instance->convertors[i]->setYomiText(yomi);
     }
 }
 
 int MultiConvertor::ren_conversion() {
+    if (nuc.find(instance->m_def_convertor) != nuc.end()) return -1;
+
     def = instance->m_def_convertor;
     texts.clear();
     int b = instance->m_def_convertor->ren_conversion();
@@ -75,6 +80,7 @@
         texts.push_back(l.kouho[0].kanji);
     }
     for(unsigned int i = 0;i < instance->convertors.size();i ++) {
+        if (nuc.find(instance->convertors[i]) != nuc.end()) continue;
         if (instance->m_def_convertor != instance->convertors[i]) {
             instance->convertors[i]->ren_conversion();
             for(unsigned int j = 0;j < b;j ++) {
@@ -99,6 +105,7 @@
 int MultiConvertor::setPos(int p){
     int cp = instance->m_def_convertor->setPos(p);
     for(unsigned int i = 0;i < instance->convertors.size();i ++) {
+        if (nuc.find(instance->convertors[i]) != nuc.end()) continue;
         if (instance->m_def_convertor != instance->convertors[i])
             instance->convertors[i]->setPos(cp);
     }
@@ -122,6 +129,7 @@
     m.convertor = instance->m_def_convertor;
     results.push_back(m);
     for(unsigned int i = 0;i < instance->convertors.size();i ++) {
+        if (nuc.find(instance->convertors[i]) != nuc.end()) continue;
         if (instance->convertors[i] != instance->m_def_convertor) {
             m.list = instance->convertors[i]->getResultList(instance->m_def_convertor->getPos(),kt);
             m.convertor = instance->convertors[i];
@@ -175,6 +183,7 @@
     }
     instance->m_def_convertor->setPos(p);
     for(unsigned int i = 0;i < instance->convertors.size();i ++) {
+        if (nuc.find(instance->convertors[i]) != nuc.end()) continue;
         if (instance->m_def_convertor != instance->convertors[i]) {
             for(unsigned int j = 0;j < texts.size();j ++) {
                 int bl = s[j];
@@ -193,8 +202,10 @@
 }
 
 bool MultiConvertor::connect() {
+    nuc.clear();
     for(unsigned int i = 0;i < instance->convertors.size();i ++) {
-        instance->convertors[i]->connect();
+        if (!instance->convertors[i]->connect()) 
+            nuc.insert(instance->convertors[i]);
     }
     return true;
 }
diff --git a/honoka/src/multiconvertor.h b/honoka/src/multiconvertor.h
index 311aac8..4c85036 100644
--- a/honoka/src/multiconvertor.h
+++ b/honoka/src/multiconvertor.h
@@ -21,6 +21,7 @@
 #define MULTICONVERTOR_H
 
 #include <vector>
+#include <set>
 #include <convertor.h>
 #include <honoka_imengine.h>
 
@@ -67,6 +68,7 @@
     ResultList result;
     vector<WideString> texts;
     Convertor *def;
+    set<Convertor *> nuc;
 };
 
 #endif