Can't get rid of permanent messages

Month ago I have mountet a CD-Image with Daemon-Tools. Norton Internet Security has found some infected files. He trys to delete them and faild of course, cause it is an CD-Image. Since then it don't stop to to tell me every few minutes that I have to insert the CD in order to scan it again. But that would give the same result , and I can't do it cause I have removed the image from the HD.

I am desperate! How can I say him not to bother me all few minutes. My only idea is to deinstall Norten. But what is with a new installation? He probably remembers of that old problem.

Please help me!!!!