RowExpander + CheckboxColumn in IE6 not functioning

[mcanthon]

Greetings,
I'm attempting to set up a grid with expanding rows and with one column being a check box based on the underlying data.

This is working perfectly in FF but fails to show the row expander icons in IE6 (not able to test other versions at the moment).

I struggled with this for a while and eventually went back to the provided grid sample and made as few edits as possible to add the checkbox column (attached). This should work if extracted into the examples directory of a normal ext install.

I suspect some sort of CSS problem but it's beyond my capabilities to debug this in IE (anyone know of a good tool for debugging CSS/DOM type issues in IE?)

I would appreciate any input on this as I'm pretty much stumped.

Cheers,
Michael

[mcanthon]

Just had a chance to test this with IE 7 and it fails in that as well.