I've tracked down the problems in using RESPONSE.write with ZServer. The symptoms of this bug are an incorrect Content-Length: 0 header, corrupt output, and no support for HTTP/1.1 clients. The replacement files, relative to 2.1.4, are at http://www.zope.org/Members/htrd/RESPONSE.write/howto (also reported in the collector) Toby Dickenson tdickenson@geminidataloggers.com