That's what happens when the lead or contact is present in Salesforce but not synced to Marketo. Check that Lead.mkto_si__MSIContactId__c is not null (or Contact.mkto_si__MSIContac...
I hate flash. It's insecure, and it uses so much memory that it slows down my (powerful) laptop. I therefore have it disabled in my browsers.Please eliminate flash from your UI.