Bear Cub,
Copped a dose of this about six mths ago and it took me a while to clear it out.
1. If you know which email contained the virus, make sure you delete it. Other wise any time you open or even preview it ... away you go again.
2. Have you checked your autoexec.bat for two lines which copy and delete kak.htm (File => Run "Sysedit")
... Check the topic Disappearing CD Drivers for the exact format. Delete these two lines and restart.
I will try and recall what else I had to do.
Max