In my experience, when the application is deactivated it cloes immediately, so I don't think this is an activation issue.
We could use a lot more information, but it sounds like maybe you're running Windows. If that's the case, see InDesign tools and panels don't respond to mouse clicks (Windows 7/Vista)
Dear Peter, thank you for your reply.
I am getting ready to leave the college and am heading home where I will try out your forwarded information.
I really hope it works! - really hope it does, though we had other people using Illustrator and Photoshop that had similar problems to what I am experiencing. For whatever reason(s), their issues were easier to fix than mine, seemingly solved when the new Adobe user ID and password were updated to the serial number.
I will let you know (and become your devoted admirer if it works).
Two issues complicated matters: ID was deactivated AND the DPI was changed, which caused the problem after InDesign was reinstalled. I looked online for help and contacted Adobe but I couldn't find the link you sent me, and other tech support did not know this either.
I think I love you.
Thank you, Peter.
Must be my week.