1.4 second lag before page loads

Hi there On one site we have a 1.4 second delay before a page loads. We've added mod_gzip and mmCache to the server. Mod_gzip has definitely helped with the speed of page loading, but this 1.4 second delay is still there. The browser hits the page, then there is a delay on 1.4 seconds before the page comes back. We have uploaded the page as a static page and this does not happen, so I'm presuming that this is a php or mysql issue. Any ideas or suggestions of how to track it down? The timestamp shows as: 21:06:10:215270 - when it hits the page 21:06:11:646549 - when the page starts loading Thanks Ade