Unsanity, LLC released bug fixes on Wednesday for Application Enhancer (2.0.3), Windowshade (4.1.2), and FruitMenu (3.6.4).
These fixes handle a bug that has been in fixed in Mac OS X 10.4.9, and Unsanity recommends their users upgrade to 10.4.9.
In the case of Application Enhancer, a bug was fixed that could cause the preference pane to fail to load.
Background and technical information is available at the Unsanity Blogsite.
Updates are available from these links: Application Enhancer, WindowShade and FruitMenu.