Win ME using Netscape System Resource Low HELP!!!

Hi people, can someone please help! Whenever I use Netscape to browse, sometimes, now most of the times, my system resource becomes very low that I have to close down netscape in order for other programs to work. This only happens when I use Netscape and I don't know why it's doing that. It's like I would go from 64% resource to 0% resource. I have 127 ram and I am using Netscape 7.1. Please help!!!

 

Stop using Netscape