IE7 hangs on LivePages

Hi all

Since approximately two weeks I am observing the following problem on my 
Servers which serve several different LivePages. The moment you want to 
go from one LivePage to the other IE7 hangs for the TIME_WAIT time of 
the sockets, stopping transmission at random points in the traffic. 
Loading the jumped to page directly works as it did thru the whole 
development time (most of 2007).

I usually work with nevow HEAD, the nevow 0.9 release does not work any 
longer with my software and stable release 0.9.26 shows the same 
symptoms as HEAD.

This problem might be related to the fixed ticket at 
http://divmod.org/trac/ticket/1938.

For an easy reproduction of the problem start the examples.tac, hit 
calculator and do a reload. Works fine on IE6, FF and Opera but spins on 
IE7.

Thanks in advance!

Werner