I too was hit with the Nimda worm. I was able to resolve the issues on my web servers but I now have problems on individual pc running w98. Word and excel files will open at times, won’t open at other times, will give me page faults referencing kernl32. Save and Save As work when they want to. The fix from Symantec is not working. Infected files keep reappearing after scans indicated they have been removed. I’m at a loss here.