diff --git a/src/calibre/gui2/tools.py b/src/calibre/gui2/tools.py
index d8497c9713..0e0d15d0d3 100644
--- a/src/calibre/gui2/tools.py
+++ b/src/calibre/gui2/tools.py
@@ -62,7 +62,8 @@ def convert_single_epub(parent, db, comics, others):
         for fmt in ['cbz', 'cbr']:
             try:
                 data = db.format(row, fmt.upper())
-                break                    
+                if data is not None:
+                    break                    
             except:
                 continue
         pt = PersistentTemporaryFile('.'+fmt)
@@ -121,7 +122,8 @@ def convert_single_lrf(parent, db, comics, others):
         for fmt in ['cbz', 'cbr']:
             try:
                 data = db.format(row, fmt.upper())
-                break                    
+                if data is not None:
+                    break                    
             except:
                 continue
         if data is None:
@@ -207,7 +209,7 @@ def convert_bulk_epub(parent, db, comics, others):
             for fmt in ['cbz', 'cbr']:
                 try:
                     data = db.format(row, fmt.upper())
-                    if data:
+                    if data is not None:
                         break                    
                 except:
                     continue
@@ -302,7 +304,7 @@ def convert_bulk_lrf(parent, db, comics, others):
             for fmt in ['cbz', 'cbr']:
                 try:
                     data = db.format(row, fmt.upper())
-                    if data:
+                    if data is not None:
                         break                    
                 except:
                     continue
diff --git a/src/calibre/library/database2.py b/src/calibre/library/database2.py
index 382c423cff..87f37416af 100644
--- a/src/calibre/library/database2.py
+++ b/src/calibre/library/database2.py
@@ -1159,7 +1159,9 @@ books_series_link      feeds
             rows = db.conn.get('SELECT * FROM %s ORDER BY id ASC'%table) 
             for row in rows:
                 self.conn.execute('INSERT INTO %s VALUES(%s)'%(table, ','.join(repeat('?', len(row)))), row)
-                
+        
+        self.conn.commit()
+        self.refresh('timestamp', True)
         for i, book in enumerate(books):
             progress.setLabelText(header+_(u'Copying <b>%s</b>')%book[1])
             id = book[0]
diff --git a/src/calibre/library/static/gui.js b/src/calibre/library/static/gui.js
index 07f393bc42..d6df4d32f7 100644
--- a/src/calibre/library/static/gui.js
+++ b/src/calibre/library/static/gui.js
@@ -40,7 +40,8 @@ function create_table_headers() {
 
 
 function format_url(format, id, title) {
-    return '/get/'+format.toLowerCase() + '/'+title + '_' + id+'.'+format.toLowerCase();
+    return self.location.pathname.substring(0,self.location.pathname.lastIndexOf('/')) + 
+            '/get/'+format.toLowerCase() + '/'+title + '_' + id+'.'+format.toLowerCase();
 }
 
 function render_book(book) {
@@ -60,7 +61,7 @@ function render_book(book) {
         title += '&nbsp;({0}&nbsp;MB)&nbsp;'.format(size);
     }
     if (tags) title += '[{0}]'.format(tags);
-    title += '<img style="display:none" alt="" src="/get/cover/{0}" /></span>'.format(id);
+    title += '<img style="display:none" alt="" src="{1}/get/cover/{0}" /></span>'.format(id, self.location.pathname.substring(0,self.location.pathname.lastIndexOf('/')));
     title += '<p class="comments">{0}</p>'.format(comments)
     // Render authors cell
     var _authors = new Array();
@@ -123,7 +124,7 @@ function fetch_library_books(start, num, timeout, sort, order, search) {
     
     current_library_request = $.ajax({
       type: "GET",
-      url: "/library",
+      url: self.location.pathname.substring(0,self.location.pathname.lastIndexOf('/'))+"/library",
       data: data,
       cache: false,
       timeout: timeout, //milliseconds