Page File problem

[1pyro]

I want to make my page file smaller, but for some reason when I go to customize and set my numbers and then hit change/set/ apply it still comes back as saying I have 1152 mb. I have 768mb of ram installed and don't need the page file default value of approx. 1.5 times the amount of physical ram. I am trying to bring it down to about 500mb.(or lower) I am familiar with this tweak and have implemented it before but something strange is going on here. HELP!!!

Thanks,

Pyro