To reopen the "post a comment" window.
Here's that "notice" page.
Your post was unsuccessful because the software was unable to verify the validity of the request.
It is possible this happened because your post was submitted twice. Please check and see if your post was successfully added before proceeding below to send a bug report (please note if you use your browser's back button to check if your post was successful you will need to click "Refresh" on your browser). If your post was submitted twice and went through successfully the first time, that is why you are seeing this message. There is no need to report this as it is not a bug.
If your post was not successful (please go and check the thread/forum for your post to verify), you can help us identify the issue and improve the software in the future by sending Elad a private message with details about your attempted post:
Were you posting an OP or a reply to a thread?
Did you use your browser's "back" button to change your post while constructing it?
Did you browse around DU with another browser window/tab while constructing your post?
Did you use preview, change your post, or otherwise take several steps while constructing your post? If so, please detail those steps as best you can.
Any other weird steps or things that happened while constructing your post that may have contributed.
Thanks for helping us eliminate this in the future.
Please note that you cannot use your browser's "back" button to resubmit this post! You must go back and start over by clicking the appropriate link to either start a new thread or post a reply.
We apologize for the inconvenience.