User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-GB; rv:1.9) Gecko/2008053008 Firefox/3.0 Build Identifier: version 3.0a2pre (2008060803) If you detach a file multiple times, the 2nd and subsequent detaches fail, AND can destroy data. Reproducible: Always Steps to Reproduce: 1.Open a message with an attachemnt 2.Ctrl-click and detach to desktop 3.Ctrl-click and detach to desktop a second time Actual Results: Second time generates an error message AND overwrites the original with a 0k file. Oops - data is now lost. Expected Results: Either a) gives an error message BEFORE detaching that the file is already detached. OR b) just make a copy at the new location (which means would overwrite with same file).