after 72 hours I finally managed to fix the problem with IE.
All I had to do is go to Tools-->Internet Option --> Advanced and Reset (Reset Internet Explorer Settings)
and now I can load cnet.com as before.
I use IE7 and Sun Java 1.6 on a P4 with 2.66Ghz O/S Win XP Pro SP2 and every time I try to access www.cnet.com plus a couple of other sites (in case you want to know these are: pcworld.com and download.com),
the explorer crashes and there is an: Unkown Zone (Mixed), next to the globe icon on the right of the Status Bar.
I asked at Microsoft's Internet newsgroups but after trying out all their tips it did not help.
In an attempt to find out, solve this mystery, if I am doing something wrong or if there is a problem with IE7 and these 3 sites,I pose a question to the forum's members.
Any ideas why this is happening ?
Thank you for your valuable time