When ever I switch to a new version of SuSE Linux the @ key 
does not work with my CyMotion Master Linux.
Since more than one user have access to the machine the best
solution is to add the key in /etc/X11/xkb/symbols/inet

partial alphanumeric_keys
xkb_symbols "cymotionlinux" {
    key <RWIN>  {   [   at              ]   };
    key <I28>   {   [   XF86MenuKB      ]   };
    key <K65>   {   [   XF86Paste       ]   };
    key <K68>   {   [   XF86PowerOff    ]   };
    key <K6C>   {   [   XF86Eject       ]   };
    key <K75>   {   [   XF86ScrollUp    ]   };
    key <AE13>  {   [   Redo            ]   };
    key <FK17>  {   [   XF86Search      ]   };
    key <I02>   {   [   XF86WWW         ]   };
    key <I07>   {   [   Undo            ]   };
    key <I0F>   {   [   XF86ScrollDown  ]   };
    key <I10>   {   [   XF86AudioPrev   ]   };
    key <I17>   {   [   XF86Launch2     ]   };
    key <I19>   {   [   XF86AudioNext   ]   };
    key <I1F>   {   [   XF86Launch1     ]   };
    key <I20>   {   [   XF86AudioMute   ]   };
    key <I21>   {   [   XF86Calculator  ]   };
    key <I22>   {   [   XF86AudioPlay   ]   };
    key <I24>   {   [   XF86AudioStop   ]   };
    key <I2B>   {   [   XF86Launch3     ]   };
    key <I2E>   {   [   XF86AudioLowerVolume    ]   };
    key <I30>   {   [   XF86AudioRaiseVolume    ]   };
    key <I3C>   {   [   XF86Cut         ]   };
    key <I63>   {   [   XF86Standby     ]   };
    key <I67>   {   [   XF86Reload      ]   };
    key <I69>   {   [   XF86Forward     ]   };
    key <I6A>   {   [   XF86Back        ]   };
    key <I6C>   {   [   XF86Mail        ]   };
    key <I78>   {   [   XF86Copy        ]   };
    key <XFER>  {   [   XF86AudioMedia  ]   };
};