It's a busy day today. I made a mention in an article at http://news.com.com/Microsoft+advises+IE+users+to+uninstall+Netscape+8/2100-1032_3-5721852.html 
Of course the headline is slightly alarmist but all good stories have a headline that will drag you in. We're offering people the best advice we can at this time for people who are hitting this problem. As soon as we have some better advice we will update it but unfortunately we don't have a workaround other than uninstalling Netscape 8 and editing the registry key see  http://blogs.msdn.com/ie/archive/2005/05/25/421763.aspx 
Of course many comments on the articles on news.com and zdnet assume this is some vast conspiracy on the part of Microsoft which is clearly not the case.
Thanks
-Dave