First explaining what is on my mind {I\'m not good at English}
On Alan Storm\'s blog, I found a tricky thing about mysql. I am not sure if he\'s using the command line o
Maybe you are using an older version of MySQL? \G is a shortcut for the MySQL ego command and should work on your system as well.
\G
See: http://dev.mysql.com/doc/refman/5.5/en/mysql-commands.html
And it works fine with vertical display on on my system.