Admin CP saving options

[New Joe]

When i go to save anything in the settings i get this error:

Not Acceptable

An appropriate representation of the requested resource /admincp/options.php could not be found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Any ideas?

[CrumbDown]

Seems straight forward. Is the admincp/option.php there? Replace it then.