If you're using Netscape on a PC, you can make the threads open in a new window. Instead of clicking the topic with the left button, click it with the right. A pulldown menu will appear, and you can choose the first choice, "Open in New Window". This will cause the link to open in a new window, and if you do this for several topics, you can have them all open in different windows at the same time. I usually do this, and flip to another topic while I wait for a reply to load. There is a way to do this on a Mac, but I don't know how. It's different due to the fact that there is right mouse button. I don't think that this is possible in Explorer, but it might be in the new version.