Yeah, I used IE without any problems at all... but I know how to keep my computer secure. I tried FireFox and liked the interface better, plus it loads pages faster... and the only time I really had issues with it eating too much memory was when I was running a macro bot through it on a web page 24/7. It loaded a new page every 1.5 seconds, so there was a lot of trash left in memory after 57600 page loads.