I updated to Evernote 5.8.8.7837 this week. Since the update, I cannot use "Save to Evernote" in Outlook 2010. When I try, the pop-up box says, "Unable to load this conversation". This happens on any email I try. Looking into the logs, I see the following: 2015-06-05 03:30:00 ERROR [8 ] - MailConversationViewModel init error2015-06-05 03:30:00 ERROR [8 ] - System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.Office.Interop.Outlook._MailItem'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{00063034-0000-0000-C000-000000000046}' failed due to the following error: Library not registered. (Exception from HRESULT: 0x8002801D (TYPE_E_LIBNOTREGISTERED)). at Microsoft.Office.Interop.Outlook._MailItem.get_ConversationIndex() at EvernoteOLRDClipper.ViewModels.ItemWrappers.ConversationViewModel.GetConversationEmails(MailItem selectedMailItem) at EvernoteOLRDClipper.ViewModels.ItemWrappers.ConversationViewModel.Init(Dispatcher dispatcher) Any ideas on what is causing this or how to fix it? Evernote has always worked flawlessly for me until now. I really hope to get this fixed. Thanks!Jeff