Last modified: 2009-02-18 22:01:58 UTC
Under MSIE 8, some sets of check boxes with labels show signs of overprinting -- the items get progressively darker due to multiple text rendering applications with font smoothing enabled.
Seen on the namespace checkboxes on the search form and at Special:Preferences.
Sounds like an upstream issue which needs to be filed with Microsoft.
This seems resolved as of IE 8rc1 on XP.