Just a heads-up here people... I consider myself a fairly tech-savvy guy who knows his way around a computer. While I am very pro-Firefox, I decided to give IE7 RC1 a whirl. Well, I didn't like it or the way it worked (wouldn't let WMP play and such), so I decided to get rid of it. First off, there is no uninstall routing with it. You must go to the Add/Remove section of Control Panel. No problem. So I go to Add/Remove. I found out that I had to have Show Updates ticked to see it... a minor annoyance. Anyway, I click and choose remove. It says I need to restart to finish the process. SO I do. Well, when my comp restarts, I get a message, "This application has failed to start because iertutil.dll was not found. Re-installing the application may fix this problem." The application in question was explorer.exe (Windows itself)! Thus began a two day ordeal. Windows couldn't boot, even in safe mode. Windows wouldn't restore. Windows wouldn't repair. Windows wouldn't reinstall. I asked for help on the computer forum I help on, and was pointed in the right direction. A fella suggested I use ERD Commander (a rather expensive program). Well, I happened to have it (it was given to me by a friend). So, after a lot of trial and error, I finally figured out to use System Restore through ERD Commander and was able to get Windows to work again. I still don't have Internet Explorer back. IE7 is "uninstalled", but it won't let me put IE6 back on. I'm going to try to contact Microsoft, but I doubt I'll get anywhere. Like I said, consider this a warning before you take the leap.