What browser do you have?
I have a Mac G5 w/ OS 10.4.8, so Safari is my default browser, but I also have Firefox, Camino, Opera and IE5 (whikch I virtually never use anymore).
Each has their uses since Since Safari is persinickety about some sites.
I think Netscape Navigator also came pre-installed on my computer but I've never gone to the bother of activating it.