Drag And Drop Error on IE7

[TampaBay55]

Gurus:
I have a simple tree loaded:



var fldLoader = new Ext.tree.TreeLoader({
dataUrl : 'flddatahandler',
baseParams : {cmd:'grid',parentid:subdataid},
requestMethod: 'GET'
})
var fldGridTree = new Ext.tree.TreePanel({
useArrows: true,
autoScroll: true,
animate: true,
containerScroll: true,
border: false,
loader: fldLoader,
enableDD: true,
root: {
nodeType : 'async',
text : 'Client Documents And Forms',
draggable: false,
allowDrop: false,
id : 'source'
}
});


In Firefox I have no problem dragging a document from one folder to another. In IE7 it throws an error "b.dom.style" is null. Any suggestions? Thanks.

[TampaBay55]

I wanted to offer some addtional info - not sure if one is releated to the other. When I drag a document from one folder to another, if the source folder is left empty it changes the icon the "file." See attached images.

[TampaBay55]

Gurus:

I was able to fix the problem with the folder icon turning into a file icon, but the problem with the B.dom.style error still persists in IE7. Can anyone offer up some assistance with this? Thanks.