I have a Drivven Differentail I/O Module (http://sine.ni.com/nips/cds/view/p/lang/en/nid/210274) and seem to be unable to produce a digital output, though digital inputs do seem to work correctly.
I was under the impression that I was only required to use a FPGA I/O Method node to set Ouput Enable to True, then write to a FPGA I/O node. However, when I do this I measure 0V with a voltmeter across the differentail terminals. Is there another step I'm missing?