Hi All, Which version of FSL should I download from the website to install on a machine with Ubuntu 8.10 64bit version ? Will "fsl-4.1.2-centos5_64.tar.gz" and the general linux instructions for centos do ? I downloaded "fsl_4.1.2.2~intrepid.apsy1_amd64.deb" for Ubuntu and opened with Gdebi Package Installer and it gave an error as in the attached image file. Could someone tell me the correct procedure to install FSL onto a Ubuntu 8.10 64bit machine ? Thanks, Jayanth