Another thing to do is eliminate fields that you're loading but not actually using anywhere, or used in the script but don't need once the script is complete. While I try to eliminate unnecessary fields as I go, sometimes I'm lazy or miss a few. Rather than spend hours looking through the script and all of the objects, I just load up Rob Wunderlich's document analyzer, and let IT tell me which fields I'm not using.
http://robwunderlich.com/Download.html
Another thing to do is to export a .mem file from the application, then look through it for things that don't look right to you. At the very least you'll get a much better idea where all the memory is going. Settings -> Document Properties -> Memory Statistics. As I recall, you can just load the .mem file like any other file you would load into QlikView, but it's been forever since I've done it.
