It is just me, or does Netscape 6 totally suck?

Whenever I test my pages in it (I'm using Dreamweaver on a Mac & using F12/Command-F12 to preview in IE & NN), Netscape inevitable refuses to display anything but a blank white screen. Only re-launching NN will cause it to preview correctly again.

The same thing happens when I surf online, eventually it refuses to display pages. Is anyone else experiencing the same problems?