diff --git a/twitterwidgets.py b/twitterwidgets.py
index 8e6bd11..0549aae 100644
--- a/twitterwidgets.py
+++ b/twitterwidgets.py
@@ -402,14 +402,14 @@ class TweetBox(gtk.HBox):
         timestring = timestamp.astimezone(timezone).strftime(time_format)
 
         # Set the header
-        self.app_url = re.sub(r'.*<a href="(.*?)".*', r'\1', status.source)
+        self.app_url = re.sub(r'.*<a href=\"(.*?)\".*', r'\1', status.source)
         app_name = re.sub(r'.*<a.*?>(.*)</a>.*', r'\1', status.source)
         self.app_button.set_label(app_name)
 
-        if self.app_url:
-            self.app_button.set_sensitive(True)
-        else:
-            self.app_button.set_sensitive(False)
+        if re.match('/', self.app_url):
+            self.app_url = 'http://twitter.com' + self.app_url
+        elif re.match('web', self.app_url):
+            self.app_url = None
 
         self.time_label.set_label(timestring)
 
@@ -418,7 +418,6 @@ class TweetBox(gtk.HBox):
         else:
             self.user_button.set_label(user.name + " (" + user.screen_name + ") ")
 
-
         # and the text
         new_text = status.text
         new_text = re.sub(r'&([^;]*?)( |$)', r'&amp;\1\2', new_text)
@@ -491,9 +490,8 @@ class TweetBox(gtk.HBox):
 
     def on_app_button_clicked(self, widget):
         self.set_read()
-        print 'debug: on_app_button_clicked(): ' + self.app_url
-        # if self.app_url:
-        #     webbrowser.open(self.app_url)
+        if self.app_url:
+            webbrowser.open(self.app_url)
 
 
     def on_mouse_clicked(self, widget, event):