I think there is a bug with the layer manager ... I am having a problem when trying to delete items that I imported into TBC. When I go to Project Explorer, and try to delete an item under the imported files, I get an error message and TBC crashes. I've noticed that the problem only occurs when I have the layer manager open on another screen ... if I close the layer manager and try to delete the imported file again, everything is fine. I just wanted to report the bug.