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.