Although Windows 7's revamped taskbar has largely received praise, it's not perfect. In fact, it can't be. It's impossible to accommodate every neurotic proclivity -- unless you have the proper utilities, of course.

Adding to our collection of topics on tailoring Windows 7, this week we're looking at the Windows 7 Taskbar Thumbnail Customizer. As its name implies, the software lets you tweak the thumbnail previews displayed when hovering over a taskbar icon. After downloading the program, simply extract and run it, no installation is required. You should see a window with a number of adjustable sliders for the thumbnail size, spacing, margins, and delay time.