Hello Marnix, The reason for this may be that the computer is not searching the correct directories when the application is called. To change this, you will need to specify the LabVIEW directory as one of the default directories to search. Make the following changes while logged on as "root".
Edit the file /etc/ld.so.conf using a text editor. Add the path to the LabVIEW directory. For example, if LabVIEW 6.1 was installed in the default directory, add the line /usr/local/lib/LabVIEW-6.1. Run the ldconfig command to update the dynamic linker. The command is ldconfig -v. The -v (which stands for verbose) is optional and is used to check if liblvrt.so.6.1 is found. Let me know if this helps. Erik vH Applications Engineering National Instruments