I'm new to Linux and have encountered a problem while trying to install the Medibuntu library. Both Add/Remove and Synaptic Package Manager are giving me the following error message: E: Type 'sudo' is not known on line 58 in source list /etc/apt/sources.list E: The list of sources could not be read. Go to the repository dialog to correct the problem. E: _cache->open() failed, please report. Does anyone know how to fix this? How do I edit the sources list? Any help will be appreciated. Nyco.