In Adobe Flash CS6, I have a blue box appearing around lines drawn with the line tool (and other tools like brush etc). Whenever I try to use a tool, a blue box appears around the line and I have to double click it to manipulate it, which opens just that line in a semi burred screen where all the other objects are semi-grey in the background. I can manipulate this line in this screen but nothing else at that time which I could do about 5 minutes ago. For exampe, I no longer can join up 2 lines drawn by the line tool together. For some reason this started randomly (probably due to a accidental shortcut combination) and I just can't put it back to what it used to be. I have inserted a video hopefully showing what I mean. Any help would be appreciated.