If you are currently running NI-DAQ 7.0 or 7.1, download NI-DAQ 7.1. This new installation will include new help documentation that will overwrite the existing files on your machine which may be corrupted. Here is a link to the NI-DAQ 7.1 download page: http://digital.ni.com/softlib.nsf/websearch/C1F802E457EA042586256DD00001B0C9?opendocument&node=132060_US
Regards, Bill B. Applications Engineer National Instruments