Hello
I have same problem.
Opera and FF works OK, but in IE8 when I try to close opened shadowbox black square remains.
Look at this demo:
http://www.znaor.com/360_demo.phpI also noticed, when shadowbox link is clicked, IE8 throws this error details:
---
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; Creative AutoUpdate v1.10.10)
Timestamp: Fri, 3 Jul 2009 11:19:53 UTC
Message: Object doesn't support this property or method
Line: 48
Char: 3
Code: 0
URI:
http://www.znaor.com/panoramas/tajana/index.html---
And that's related to script I'm using in
http://www.znaor.com/panoramas/tajana/index.html, because same error is thrown when opening that page alone.
Conclusion:
"Closing shadowbox in IE8" error may be produced by other party js scripts which conflicts with shadowbox ones.