Release 13 with Service Pack 1 (R13SP1) contains many products that are updated with new features and/or major bug fixes.
To ensure proper functionality, download and reinstall the updated versions of MATLAB 6.5.1 and all licensed products into a new installation directory. Do not install into an existing R13 installation.
Also, R13SP1 toolboxes can only be installed and run with R13SP1 MATLAB installation. If you are installing R13SP1 for the first time, you shoud reinstall all of your R13SP1 products into a new installation directory.
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