Invalid directory resource, part 2

I forgot to mention a couple of things. The way the site works is it's one file that has a ?id=whatever in the address. whatever is then looked up in a database and corresponding data is pumped out through a template. So, after further testing, it seems that sometimes when the page is reloaded (with or without a different id) sometimes the directory resource id doesn't change, and then I get the invalid warning. So, is there a way to somehow reset the directory resource id? Or maybe have it get a new one each time? (reliably) Thanks John Fuetsch