Using C5 5.4, I have a form block with a text area. When I edit the text area control on the form, the scroll bars are removed, and the page that normally would display the control attributes does not display. The page containing the form block is displayed in dim. The only option is to re-fresh the page which restores it to edit mode.

I was able to remove the text area, and re-add it.

I've tried using Chrome & FireFox & IE 9.