Method Not Allowed - solution?

Apache is returning the following error:
Method Not Allowed
the request method POST is not allowed for the URL /photo/up.html

Im trying to create a simple form along with a php file to process it:

up.html:

<form method="post" action="upload.php" enctype="multipart/form-data">
<input name="newFile" type="file">
<input type="submit">
</form>

upload.php: (it never actually gets to this stage so i wont bother including it here)

Someone said to me something about not being able to post to the php file or something..

Anyone able to help?

Thanks in advance,

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