On Call Few make it to Friday without some end-of-week blues, which The Register always treats with a fresh dose of On Call – the reader-contributed column that recounts your stories of tech support contusions. This week, meet a reader we’ll Regomize as “Jake” who told us of the time he worked as the sole sysadmin for an entire hospital. Jake’s job focused on classic information technology, but in the story that he sent to On Call medicos summoned him to investigate a malfunctioning CT scanner. ...