Java Script Void

Im now getting the message at the bottom left of the page when I try to see
replys to post here and other pages. It says "javascript void(0). It just
started doing this. I
close and come back and maybe (like this time) I then can see the replys.
Sometimes I get a message that "Sorry, the page is not available" or when
that happens, the blue loading bar goes all the way and stops for a long time
and get a timed out error. My usual browser is Netscape. I get the java
script error there all the time. I have enabled java and Active X there and
IE6 also. I have the latest java updates, all IE6 updates, all win98se
updates, all Avg virus updates, adaware, spybot etc. As a side note, I can't
go to Norton to due their online scan engine because it says I need active x
enabled but it is enabled. A few other online scan places say the same thing.
Are these related?
Much thanks