Allow in theme-options

Hi,

when I add <script> to my theme-options fields i get a “Forbidden – You don’t have permission to access /wp-admin/themes.php on this server.” message from the server.

But when I create a new page and add <script> to my “post custom values” (below the textarea field) it works just fine..

Any idea how so solve the problem? :S
Do i have to escape my post values in some way?

Thanks a lot!