Internet Explorer - suggestion list does not disapear if scrollbar was used

Problem was previously described here:

http://www.mail-archive.com/jquery-en@googlegroups.com/msg52242.html

but ticket corresponding to it was deleted. I am currently using jQuery v1.4.2 and AUTOCOMPLETE 1.1 but I also tested it with jQuery v1.6.1.

Problem exists in Internet Explorer 7 and 8.

Description of the problem and steps to reproduce from link mentioned above:

1. Enter something in the text box that provides suggestions

2. Let the suggestion list appear with scroll bars.

3. Use the scroll bar to scroll down or up (this step is very important)

4. Now click on anywhere outside the suggestion list. Ideally the suggestion list should disappear but I see that the suggestion list just sits there unless you select something from the list