http://bugs.winehq.org/show_bug.cgi?id=23008
--- Comment #8 from markk@clara.co.uk 2010-07-04 08:50:14 --- Another issue is that sometimes popups get stuck, remaining on screen even after you navigate away. When viewing LCW.HLP, try this: Click "Help, Basics", "Autohelp popups", "Autohelp popups, turning On / Off", then the checkbox popup link. Click the "accelerator key" popup link in the checkbox popup.
The first time, the accelerator key popup immediately disappears as I mentioned above. If you click the accelerator key popup link again, it appears and remains on screen. Click in the winhlp main window. The accelerator key popup disappears, but the checkbox popup remains. You can click Back and other links, and the checkbox popup is still there.