Then click on Identity under Mail and Newsgroups in the left column. You can leave the Outgoing mail server user name blank. Between the toolbar and the main window is the Location box. The leftmost button on the toolbar, labeled Back with an arrow pointing to the left, will take you back through pages you have seen. The next button, which is labelled Forward with a right-pointing arrow, will take you forward up through the last page you have seen.
Graphics take too long to load.
Yes, you can. Large graphics, especially over modem connections, can take a very long time to load. Clicking on this with your mouse will either check or uncheck it. Unchecking it will cause Netscape to ignore graphics, which will allow you to load web pages more quickly. Unfortunately, there is no real way to make graphics themselves load faster.