BFG, if you're eferring to Netscaoe 4.5 upto 4.79, I agree, those versions are utter crap.
Mozilla is not based on that codebase though, Mozilla isn't even in the same league in terms of quality and rendering accuracy.
Oh and yeah, I also call IE never crashing BS, I've seen every browser crash, though some tend to do it more often than others, the leader in number of crashes is definately Netscape 4.7x, with IE 5.5(I think it was, 5.something anyways) on a Win98 box comming second, after that, Mozilla, IE on my Win2K box, Galeon, and Opera are all pretty equal, and they crash seldom enough for it not to annoy me a whole lot.