I got some mails that would not show the creating or receiving time when I opened them, but others could.
The groupwise open windows layout looked different between the mails did not show the time and the ones could show the time.

The ones did not show the time were traditional look of groupwise. The time suppose shows up in the bottom.

I think I missed some configuration, but I do not know how.

Any suggestion will be welcome.

Thank you.