I installed IE8 final on a Vista computer that never had IE8 betas before.

I ran CCleaner v2.17 with all options checked. I get 3 windows that say 'Delete Browsing History' popping up. With IE7, there was only one.

The windows close slowly. Why are there 3, though?

I really don't know what is happenig,
but I've had IE8 since RC1 and never had problems like this.

Maybe you should try internet options > Advanced > Reset.

It's not that bad. It did actually fixed me a problem with the address bar.

Yes me too I have the same problem.

By doing what metalj suggested wouldn't solve a thing. Since IE8 is recent, I can only guess that piriform need doing testing with it and update accordingly.

Actually the problem with IE8:

When acessing "Safety" from toolbar, and "delete browsing history", same amount of dialog windows popup when pressing delete button as we see with CCleaner.

I hope the next update be ran without 'Delete Browsing History' popping up.