After uploading a new file with my FTP program, when hitting RELOAD PAGE, the page reloads, but shows me the previous content without the new changes.
This has happened with several sites I manage.
When trying to reload with firefox, it reloads the new page immediately.
Can you provide a URL for a page on which this problem is reproducible? It would be useful to be able to see the HTTP headers for the request, even though we would obviously not be able to observe the lack of new content that you describe. If possible you may be able to demonstrate this aspect to someone that can collect further information in order to debug this issue. Stopping by our IRC channel (<http://webkit.org/contact.html>) would be a good way to find someone to assist with this.