Flash Reload Cached Movie

I have a flash movie that pulls data from a db on the page load. What I see on my machine is that if I have never loaded the movie it works fine. If I go back to that page it loads the cached movie which might have old data in it. Any suggestions on what I am doing wrong.

This is part of the Action Script that I am using to pull the data from a php page that accesses the db.

myData = new LoadVars();
myData.ref = this;
myData.load(“getVacancies.php”);
myData.onLoad = function(succes){
if(succes){
for(var i=1; i<this.cant; i++){
vacancies[i-1] = [this[“City”+i],this[“Vacancy”+i],this[“Rent”+i], this[“Inventory”+i], this[“Absorption”+i]]
}
} else trace(“Error loading data”);
}