sending a basic mail with php mail()

[eluser]virtualgadjo[/eluser]
Hi all,

not exactly new to CI but this time i feel like a newb

i'm desesperatly trying to send a simple mail from a website using CI email library (with protocol => mail) and i get the following error

Unable to send email using PHP mail(). Your server might not be configured to send mail using this method.

when sending the same mail the "old" way with the basic

Code:

$headers  = "From: ".utf8_decode($from)."\n";
$headers .= 'Reply-To: '.$data['email']."\n";
$headers .= 'X-Mailer: PHP/' . phpversion();
$success  = @mail($to, stripslashes(utf8_decode($sujet)), stripslashes(utf8_decode($body)), $headers)

it works like a breeze !!! (then i can assume my server is configured to send mail with mail() can't i ? )

any idea would be warmly welcome
chris

PS sorry, forgot to say CI 2.0.1...