I'm having a problem with Apple Mail. It won't let me open .doc attachments in a compose window, yet I can open .docx attachments without issue. For example, when I compose a new message and attach a document, I like to double click the attachment within the message to confirm that I'm sending the right file to my client. With 10.5, this wasn't an issue. Everything opened as expected. But with 10.6, I get an error message that says "Mail was unable to save the attachment "file_name" to disk. Verify that your downloads folder exists and is writable." Again, this is ONLY happening with .doc files and it happens no matter which account in Mail I choose to send from. Any ideas?