two modes for mail-notify

[Allan Gottlieb <gottlieb nyu edu>]

I cannot explain why mail-notification has two distinct behaviors on my
system (gnome 3.2, gentoo ~amd64).

In both modes, when I move the cursor to the lower right corner
I see notifications (mail and wicd).  The two modes for
mail-notification are.

1 (The mode I want).  Hovering over the mouse shows the first 10
message headers and gives the total count.  (Left) clicking the icon
runs the mail reader (fetchmail in my case).

2.  Hovering has no effect.  Clicking shows the last two messages.
Right clicking offers "open" and "remove".  I don't see any effect from
"open" and have not tried "remove".

I much prefer mode 1.  How can I ensure it is always used.

thanks,
allan