Norton Antivirus

Even though I’ve uninstalled Norton Antivirus, Avast keeps telling me that Norton is still running and disables the scanners. Any suggestions? ='(

edit: Here’s a screenshot of the error message…

http://www.denier-os.cjb.net/images/avast.png

Norton leaves a lot of stuff behind even when you uninstall it, there are many such threads in these forums.

The removal tool for NAV 2003 (only) can be downloaded here:
ftp://ftp.symantec.com/misc/consumer/Rnav2003.exe
Manual Removal NAV 2004
Manual Removal NAV 2003 or earlier