Not specific to replying...

by Mike (Max) , Orlando, Monday, February 16, 2009, 16:33 (6084 days ago) @ Joe
edited by Mike (Max), Monday, February 16, 2009, 16:36

To recreate it, write a subject line, write your post, then click the Preview button at the bottom. When the preview opens, your subject line is gone, so you have to type it again when you want to submit.