Thanks that helps, but I had already uninstalled and reinstalled Perl, the ARM toolchain, and the SDK and the problem was resolved. But yeah I think that simply adding that line to the PATH environment variable would have solved the problem. So everything went smoothly until "Installing TRK Application on the Phone". I get the following error message in the Nokia Application Installer for both files: "The application installer in the phone does not support the file format of the application that was tried to be installed." I tried it on a Nokia N70 phone that has the latest firmware on it. Any thoughts? ________________________________________ Samer M. Faour Computer and Communications Engineering American University of Beirut P.O. Box 11-0236/ 1461 Riad el Solh Square 1107 - 2020 Email: smf18 at aub.edu.lb ----------------------------------------------------------------