Lets first start by verifying you can get a signal into the
computer. Please check the test panels in Measurement and Automation Explorer
for the 1200. Do you get any errors? Was this card working before? This
knowledgebase :<a href="http://digital.ni.com/public.nsf/allkb/A028CCEB84E3ECA986257212007BE794?OpenDocument" target="_blank"> Testing Your SCXI-1200 System</a>
will also help you out.