Look at these links:
Since the underlying software is LabView, I’d suggest looking at the directories containing your programs (after making a copy or two of the entire thing!) for duplicate names.
Found that via: http://www.google.com/search?hl=en&safe=off&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&hs=okF&num=100&newwindow=1&q=%22Fatal+Internal+Error%3A+%22linker.cpp%22%2C+&aq=f&oq=&aqi=
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