KDE4 Kmail Configuration

Hi.

I've just installed OpenSuse 11.2 with KDE4, and I have a question about Kmail 
configuration. 

When I look at a folder, it shows me a bunch of blank lines, each with a 
triangle and a date attached, like Yesterday, Today, Two weeks Ago, etc. Then 
I have to click on the triangle to see what came in on that date. 

I hate this arrangement. (And the one showing the same kind of separation of 
messages, but by sender name)

I want my mailbox to revert to the previous behaviour which just showed all 
the email headers without separation.

The question is how does one do this in KDE4? 
-- 
Robert Smits [email protected]