Thanks for following up.
1.) This issue, it seems, relates to an unsuccessful upgrade to the Zen-Fire API with the installation of 7.0.1000.3. By simply recreating the connection, this issue can be resolved. This being the case, you should see no further issues by upgrading to 7.0.1000.3 once again.
2.) It is possible to use Zen-Fire in 64 bit mode as well, but an option needs to be enabled in the Connection Wizard. For more information, please see the following link: http://www.ninjatrader.com/Connectio...tion-Guide.php
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