Force flash to update XML?

Hey all,

I have a php script which allows me to update the xml file and add another record to my xml file.

I do this and refresh the flash only to find that xml still has not updated?
Is there a way to update the xml which is displayed in flash say every 15 minutes and on refresh or something like that??

Because the only way i get it to work currently is clear the browsers cache then refresh thus (not making it really dynamic) :frowning:

By the way i get my data through an xml connector and bring into my datagrid.

Any ideas??

Cheers,
George