file uploader class issues

[eluser]llbbl[/eluser]
having trouble uploading files. it is not allowing odt or xls or ods files even thou this is in my config file settings before I initialize the class.

$config['allowed_types'] = 'doc|pdf|txt|ppt|odt|xls|ods';

the only other config thing is max size and all the documents are all under the max size.

When I

$data = array('error' => $this->upload->display_errors());
var_dump($data)

it says:
array(1) { ["error"]=> string(64) "

The filetype you are attempting to upload is not allowed.
" }

doc, pdf and txt work