Contact MathWorks and Use the instrsupport Function
If you need support from MathWorks®, see Contact Support.
Before contacting MathWorks, run the instrsupport function. This function returns
            diagnostic information such as:
- The versions of MathWorks products you are using 
- Your MATLAB® path 
- The characteristics of your hardware 
- Information about your adaptors 
The output from instrsupport is automatically
saved to a text file, instrsupport.txt, which you
can use to help troubleshoot your problem.
To have MATLAB generate this file for you, type
instrsupport