I just upgraded to WP 2.3.3 but every time I try to upload an image I get a 404 error. I tried disabling all plugins and even tried using just the basic Kubrick theme. Still have the same problem.
My upload.php is CHMOD to 644 as I believe it's supposed to be.
I am at an utter loss and any other somewhat similar post on the topic seems to have a different problem than I am having and a non-working solution.
Is it that the upload.php isn't recognizing me as being logged in properly or...? Everything else seems to be working fine.
REALLY wishing I would have stayed on 2.3.2 right about now...