This is the only browser which closes for absolutely no reason and then
reloads another instance as though it is doing us a favor. Many times I would
be typing something in the web and the browser will close. I will lose
everything I typed.

And second, why is that when I view youtube, IE7 slows down drastically? If
I try to open another tab with youtube, it takes a loooooooooooooooooooooong
time.

These are but a couple of crappy things in IE7. Windows Vista is a major
major disappointment. Its crappy start to finish.