Views theming

I've been helped out a lot by the "Theme: Information" option in Views, being able to use PHP to rewrite field output. There's a site I'm working on right now, though, where it doesn't seem to be recognizing the overriding files I'm creating for specific fields. In other words, if I click the "Re-scan template files" button, it doesn't recognize the files I've created. If I switch the theme using the drop-down box on this same page, it does seem to notice they're there (though they don't seem to affect the output). Any idea why this could be?

I'm assuming it's because I copied the basic theme info from a different theme and modified it to suit my needs. Specifically, I copied the Chameleon theme. Is it possible Chameleon overrides the location to look for theming files? Where would I look for that code? The .theme file? I'm not seeing it there.

Thanks!
Macho