Gmail has introduced a way to disable conversation view. This way you will have a separate message appear for replies. Personally I’m a big fan of the conversation view, but some people prefer to have responses in separate e-mails. Here is a tutorial on how to disable conversation view.
1. Go to the main Settings page in Gmail.
2. Go to the “Conversation View” section.
3. Select the option for turning it off.
4. Click Save Changes
5. To undo the changes, just go back to the Settings page again.