Steps To Setup
- In gmail goto Settings > Labs.
- Enable ‘Auto-advance’ option and click ‘Save Changes’ button at the bottom.
- Goto settings ‘General’ tab on Settings page and look for ‘Auto Advance’ settings’.
- Select any of the following option
- Go to the next (newer) conversation
- Go to the previous (older) conversation
- Go back to the threadlist
- Settings done
Now check your messages , for disable this service go to labs and disable Auto-advance service.
Hope it is useful for you. Share your comments and questions about it in the comments box below :- )