I am rather new here, but I have tried to post in the chemistry twice and both times the new topic window collapsed on me and I could not re-open it. Am I missing something? Carl
I think I know what is happening. I think you are hitting the "Add topic" button again after typing out your post.After you get done typing your post, scroll down and click the "Submit" button and it should work for you.Let me know if you have any trouble!