Can't close Window after scheduling a conversation

When I schedule for a conversation I receive the message, that I’ve done so.
But I cannot close the window. Neither the “x” nor the button “Close” works.

Hi Vera,

Is this on all you computers or only on the one at home that you have had issues with in the past? I can’t recreate this problem in IE7. Is anyone else having this problem? If so, what browser and version are you using?

Hi Mark,
I tried it on two different computers, at home and at work, both with IE7. Last week there was no problem. Tomorrow I can check it on a third computer.