the matrix,
I would try reinstalling the LabVIEW 8.2 Run-Time Engine. You may also want to try creating a very simple project in your development environment that has a VI with just the Mean.vi, try building an executable and then running it on the machine that just has the 8.2 RTE.
Doug M
Applications Engineer
National Instruments
For those unfamiliar with NBC's The Office, my icon is NOT a picture of me 🙂