Bug with textarea in my theme options

Hi everobody!

I want to propose options for my theme, like https://literalbarrage.org/blog/archives/2007/05/03/a-theme-tip-for-wordpress-theme-authors/.

I have a bug with textareas. When empty, it show the beginning of the file .po of my theme!!!

I use this syntax to create textarea:

<?php
...
array(
"name" => __('foo','news'),
"desc" => __('Text to display...','theme'),
"id" => $shortname."_else",
"type" => "textarea"),
...
?>

Thanks for your help!

V.