If you try to use the PCI-1200 when it has resource conflicts (DMA in this case), you will receive errors. This error is saying that there is a resource conflict with the DMA that is assigned to the PCI-1200. There maybe another piece of hardware that is using the DMA that was assigned to the PCI-1200.
What version of NI-DAQ are you using? I would suggest to use NI-DAQ 6.9.3 if you aren't. You can download and install NI-DAQ 6.9.3 from the link below.
NI-DAQ download
http://digital.ni.com/softlib.nsf/webcategories/85256410006C055586256BBB002C1293?opendocument
If you have NI-DAQ 6.9.3 already installed, I would suggest to uninstall the PCI-1200 and possibly try another PCI slot within the PC. I have included a link below that contains other troubleshooting
tips that might be useful. I hope this helps.
DAQ Configuration Wizard
http://www.ni.com/support/daq/
Regards,
Todd D.