I set pretty url's which didn't work for me, so I disabled it. Now I go back to the site and it looks like it's enabled again. When I try to log in to the dashboard, it directs me to a pretty url and fails, then I try to log in again and it gives me a message.

Invalid form token. Please reload this form and submit again.

So I can't turn this off now. I am on Godaddy, and have tried to insert the code provided in the .htaccess files but it didn't work.

Any idea how I can fix this?

Thanks.