Please see the attached image.
The web inspector settings drop down for styles and event listeners are going off the screen under windows 7.
This happens when you are in full screen mode for the browser or window big enough not to grant space for the menu on the right.
Unsure if it happens on all windows versions or linux, not tried. Mac works fine.
Issue exists in Chrome 9, Chrome 10, Safari stable and webkit nightly.
BTW, this happens under linux too, and any version of windows.
As per comments here
The underlying issue is with html select.
Test case link: http://www.techskater.com/tdd/test.html
Unsure if this is a dupe of another bug here, but couldn't find it.
The Chromium-related part of this issue is tracked as bug 63438.