Check the directory paths on your NI installation. You may have a \blah\National Instruments\Measurement Studio\ and a \blah\National Instruments\MeasurementStudio\.
If so, the easist way to correct it is to copy the one with less in it into the one with more in it. The hardest way is to reinstall, paying close attention to the spaces in your paths. I just copied the contents of each sub-directory of the one with the space into the corresponding sub-directory of the one without the space, and it seemed to correct the problem. Make sure you merge the directories, rather than destroying the destination dir. You could probably also just add the other to your library path.
Jon