There is another issue which especially happen if the
visitor reloads the page and gets a '500' instead.

Until now this happen only with MSIE for unknown reasons.
Sometimes a couple of requests are possible, sometimes
only 500 even on multiple tries.

The problem cant be reproduced with Mozilla 1.4, NS4.8,
NS7 and Opera 7 so its probably just another protocol
violation of MSIE.

Url for testing at <http://80.254.133.162/> which directs
to a nearby webserver.

Roland