IE has many java issues, not the least of which is a memory leak. Swiftswitch is affected by this problem because it is built on IE (using VB). The longer IE, or products built using it, are open (in memory) the worse the problem gets until, in the worst case, you have to kill the process and restart the browser. Usually it just gradually slows down everything you do using more and more resources until it can't continue to run. Firefox is not affected by this problem but it does have its own set of odd behaviors nsuch as once RS has loaded the keyboard input does not move its focus correctly. There are other problems relating to redrawing the active window as well. Because both Sun java and Firefox are open source there is a very active community working to identify and fix reported problems. I would like to see an application, like SwiftSwitch, based on Firefox because it could be used on multiple platforms such as Windows, the Mac and various Linux and Unix flavors.