diff --git a/VERSION b/VERSION
index 08a81b93..f0370e8c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-Version 1.99.4 (2012-02-28 15:13:05) stable
+Version 1.99.4 (2012-02-28 15:39:53) stable
diff --git a/applications/admin/controllers/default.py b/applications/admin/controllers/default.py
index 65cd3c57..9f07abfa 100644
--- a/applications/admin/controllers/default.py
+++ b/applications/admin/controllers/default.py
@@ -1061,7 +1061,10 @@ def errors():
     app = get_app()
 
     method = request.args(1) or 'new'
-
+    db_ready = {}
+    db_ready['status'] = get_ticket_storage(app)
+    db_ready['errmessage'] = "No ticket_storage.txt found under /private folder"
+    db_ready['errlink'] = "http://web2py.com/books/default/chapter/29/13#Collecting-tickets"
 
     if method == 'new':
         errors_path = apath('%s/errors' % app, r=request)
@@ -1104,7 +1107,7 @@ def errors():
         decorated = [(x['count'], x) for x in hash2error.values()]
         decorated.sort(key=operator.itemgetter(0), reverse=True)
 
-        return dict(errors = [x[1] for x in decorated], app=app, method=method)
+        return dict(errors = [x[1] for x in decorated], app=app, method=method, db_ready=db_ready)
 
     elif method == 'dbnew':
         errors_path = apath('%s/errors' % app, r=request)
@@ -1169,16 +1172,16 @@ def errors():
                          key=func,
                          reverse=True)
 
-        return dict(app=app, tickets=tickets, method=method)
+        return dict(app=app, tickets=tickets, method=method, db_ready=db_ready)
 
 def get_ticket_storage(app):
     private_folder = apath('%s/private' % app, r=request)
     ticket_file = os.path.join(private_folder, 'ticket_storage.txt')
-    if os.path.exists(ticket__file):
+    if os.path.exists(ticket_file):
         db_string = open(ticket_file).read()
         db_string = db_string.strip().replace('\r','').replace('\n','')
     else:
-        raise Exception, "No ticket_storage.txt found in /private folder"
+        return False
     tickets_table = 'web2py_ticket'
     tablename = tickets_table + '_' + app
     db_path = apath('%s/databases' % app, r=request)
diff --git a/applications/admin/views/default.mobile/errors.html b/applications/admin/views/default.mobile/errors.html
index 3cca94e2..084ce604 100644
--- a/applications/admin/views/default.mobile/errors.html
+++ b/applications/admin/views/default.mobile/errors.html
@@ -19,6 +19,9 @@ table.sortable thead {
 tr.error_ticket:hover {
   background-color: #eee;
 }
+a.unavailable {
+  color: #ff0000;
+}
 </style>
 
 <script language="JavaScript">
@@ -36,7 +39,13 @@ tr.error_ticket:hover {
   }
   jQuery(document).ready(function() { jQuery('.traceback').hide(); });
 </script>
-
+{{if db_ready['status'] == False:
+    switchurl = db_ready['errmessage']
+    switchbutton = XML("""<a data-role="button" data-inline="true" data-inline="true" href="%(href)s" title="%(title)s" class="unavailable"><span>switch to : db</span></a>""" % dict(href=switchurl, title=db_ready['errmessage']))
+else:
+    switchurl = URL(args=[app, 'dbnew'])
+    switchbutton = XML("""<a data-role="button" data-inline="true" data-inline="true" href="%s"><span>switch to : db</span></a>""" % (switchurl))
+pass}}
 <h2>{{=T('Error logs for "%(app)s"',dict(app=app))}}</h2>
 
 <div>
@@ -59,7 +68,7 @@ tr.error_ticket:hover {
         <a data-role="button" data-inline="true" href="{{=URL(args=[app, 'dbold'])}}"><span>lists by ticket</span></a>
     {{else:}}
         source : filesystem
-        <a data-role="button" data-inline="true" data-inline="true" href="{{=URL(args=[app, 'dbnew'])}}"><span>switch to : db</span></a>
+        {{=switchbutton}}
         <a data-role="button" data-inline="true" href="{{=URL(args=[app, 'old'])}}"><span>lists by ticket</span></a>
     {{pass}}
     </p>
@@ -103,7 +112,7 @@ tr.error_ticket:hover {
         <a data-role="button" data-inline="true" href="{{=URL(args=[app, 'dbnew'])}}"><span>lists by exception</span></a>
     {{else:}}
         source : filesystem
-        <a data-role="button" data-inline="true" href="{{=URL(args=[app, 'dbold'])}}"><span>switch to : db</span></a>
+        {{=switchbutton}}
         <a data-role="button" data-inline="true" href="{{=URL(args=[app, 'new'])}}"><span>lists by exception</span></a>
     {{pass}}
     </p>
diff --git a/applications/admin/views/default/errors.html b/applications/admin/views/default/errors.html
index 498e87b6..0fc33a33 100644
--- a/applications/admin/views/default/errors.html
+++ b/applications/admin/views/default/errors.html
@@ -19,6 +19,9 @@ table.sortable thead {
 tr.error_ticket:hover {
   background-color: #eee;
 }
+.controls a.button.unavailable {
+  color: #ff0000;
+}
 </style>
 
 <script language="JavaScript">
@@ -36,6 +39,11 @@ tr.error_ticket:hover {
   }
   jQuery(document).ready(function() { jQuery('.traceback').hide(); });
 </script>
+{{if db_ready['status'] == False:
+    switchbutton = A(SPAN("switch to : db"), _href=db_ready['errlink'], _class="button unavailable", _title="%s" % (db_ready['errmessage']))
+else:
+    switchbutton = A(SPAN("switch to : db"), _href=URL(args=[app, 'dbnew']), _class="button")
+pass}}
 
 <h2>{{=T('Error logs for "%(app)s"',dict(app=app))}}</h2>
 
@@ -57,7 +65,7 @@ tr.error_ticket:hover {
         <a class="button" href="{{=URL(args=[app, 'dbold'])}}"><span>lists by ticket</span></a>
     {{else:}}
         source : filesystem
-        <a class="button" href="{{=URL(args=[app, 'dbnew'])}}"><span>switch to : db</span></a>
+        {{=switchbutton}}
         <a class="button" href="{{=URL(args=[app, 'old'])}}"><span>lists by ticket</span></a>
     {{pass}}
     </p>
@@ -101,7 +109,7 @@ tr.error_ticket:hover {
         <a class="button" href="{{=URL(args=[app, 'dbnew'])}}"><span>lists by exception</span></a>
     {{else:}}
         source : filesystem
-        <a class="button" href="{{=URL(args=[app, 'dbold'])}}"><span>switch to : db</span></a>
+        {{=switchbutton}}
         <a class="button" href="{{=URL(args=[app, 'new'])}}"><span>lists by exception</span></a>
     {{pass}}
     </p>