I have a virtual hosting account with my isp. I am considering upgrading to 'enhanced' virtual hosting (more features like database etc). The server my site is hosted on and the ip address will change. I was just wondering if this will make any difference to my ranking in Google? The url will be the same but I am worried Google either will not be able to find my site when it moves or maybe it will thinks it's a duplicate site or something. Can anyone put my mind at rest?