Hi Larry,
I did some more testing, since the problem was not fixed yet.
I still 'keep' an extra button on my taskbar with an IE7 windows
containing .. nothing. The famous 'about blank' page is very
annoying, since it stays 'nice and firm' on the taskbar and
confuses the demo. It comes up while 'taping' a download action on
an external webpage. I did the ultimate challege, taped the same
demo in Firefox 2.0.0.6 and .. no problem. So it appears to be a
problem caused by IE7. Maybe this info can bring my problem into a
new perspective?
Thanks for your support,
Hans