[wp-testers] Masses of nocache_header() in WP 2.7.1?

[Frank Helmschrott]

Hi,
i just moved to medium trafficed WP-Installation to a new testserver today
(my first lighty/fastcgi setup). When researching the bad performance they
got i noticed that wp sends out no-cache headers most of the time. After
reasearching some more i found out that this seems to a be a 2.7.1. specific
thingy.

I used Firebug to review the http headers and found out that nearly every
(first) request to a single post or the homepage resultet in these headers.
Anyone else experiencing this stuff?

Here's how the headers looked exactly:
http://img.skitch.com/20090214-xxy6qnedej85q2hygn21necrq8.png

any idea?

-- 
Frank