I am serving an ASP.NET application from IIS 7 but we are experiencing some weird cookie issues. The code works fine in other environments so we are assuming this is specific to this server (related question).

We have been looking at the http headers returned and someone pointed out that the date http header is showing the 1st of Jan rather than today's date (so far it always shows that date regardless of what the current date is). The system clock is set correctly (and we can print out the current time/date via DateTime.Now correctly as well) so we can't work out why it's now working. Does anyone have any ideas? Is this a red-herring?

Thanks, James