[support] How can i enable byte range request?

Dear All <http://community.webfaction.com/vote/9424/down/> <http://community.webfaction.com/mark_favorite/9424/> How can i enable byte range request? While pod casting on itunes it gives an error message "There is a problem with your feed. Your episodes are hosted on a server which doesn’t support byte-range requests. Enable byte- range requests and try your submission again.". Please give me a method to enable byte range request Regards Selvaraj.C