Having left its Uniplex Ltd unit to do its own thing since it acquired the the firm back in December of last year and lumped it in with its IMI Computing Ltd, the Unix office software firm’s new parent, Birmingham-based IMI Plc has taken matters in hand, appointing its own board director of computing operations, Roy Amos, as group chairman of Uniplex. Uniplex founder Peter Osbourn and finance director Dave Jennings have been squeezed out in the re-shuffle, and Patrick Regester, previously head of Uniplex’s international operations division has been appointed managing director, reporting to Amos. Lindsay Smith, formerly group controller, steps into Jennings’ shoes, while Tony Grimsditch continues as director of software products. Meanwhile, hoping to take advantage of the turmoil at Uniplex, UK Sun Microsystems Inc reseller Productivity Computer Solutions Ltd, Wakefield, West Yorkshire, is aiming to wean Uniplex office software users on to the rival Aster*x office suite it markets, offering the Applix Inc software for ?100 per user to Uniplex customers until next May.