huh? Where have you downloaded it? If I go to: http://www.interactivebrokers.com/en/p.php?f=tws&ib_entity=llc then I only see the 893.4 March-20 version.....(it should be a March-25/26).
when you download the version there (even if it is the 20th march) it is the 893.5 version it worked out for me...
Ok...I tried the Browser first, but that one is still the old 893.4. But, indeed the Stand-alone (which is also presented on the WebSite as Mar-20), is indeed the new 893.5 March-25. And yes, it seems to work (no double quote-messages anymore).