Drop Shadows with PHx:phpThumb no workie

Curious to know if anyone has experienced issues getting drop shadows with the phpThumb filter ’drop’? Here’s my tag:

[tt]<img src="[*imageFile:phpthumb=`wp=517&wl=690&fltr{}=drop10|10|000|100#[(base_path)]`*]" alt=" " />[/tt]

It’s sizing the image fine but not producing the drop shadow. This is with PHP 5.3/XAMPP/MODx 1.0.4.

Maybe related http://modxcms.com/forums/index.php?topic=43077.0

I’m not sure about phpThumb, but with MaxiGallery, the drop shadow is added on upload, so if you change things, you have to reupload the images.