I am running gnome desktop.
when i start netscape from icons or command or button. many
times i loose the keyboard, the mouse still works for links
but you cannot enter a URL or enter on a web page. I just
keep starting it over and over and after 4-5 times it works.

when the keyboard is gone, i can change windows and it works
on other stuff.
Also, on some web pages, netscape just disappears and system
returns to desktop. no particular www page.