Has anyone used this with a tree panel? I have it working for a grid, but when i try to give it a tree componenet, or a tree store, it goes into the excelFormatter, tries to render a workbook,

then does on this

Code:
try { __flash__toXML(Downloadify.getTextForSave("downloadify_1355328296803")) ;}catch (e) {"<undefined/>"; }
which i assume is from the downloadify.swf, and then dies with the catch(e) being a TypeError : undefined_method

It's very strange as it gets past this point when using a grid component.

thanks for any ideas anyone might have