Guys
Today I found 3 more interesting BUGs in Windows Vista: 
First BUG:
1. Double-click on the bottom area of taskbar where system tray icons are displayed, like Windows Defender, Removable Media, Yahoo! Messenger, etc icons. You can unlock the taskbar and increase its size to see the area more clearly:
2. You’ll be surprised when “Windows Defender” window will open even you didnt click on its icon.
NOTE: Windows Defender should be enabled and running to recreate this bug.
Second BUG:
1. Maximize any window e.g. My Computer window.
2. Right-click on Minimize or Restore buttons and voilla you’ll get the context menu which appears when we right-click on titlebar.
3. It doesnt appear when we right-click on Close button.
So its definitely a bug. Why should it appear on buttons?
Third BUG:
Here is another interesting goof-up not bug in Windows Vista:
1. Open Control panel and double-click on “Programs and Features” icon.
2. Look carefully at Task Band containing “Organize” and “Views” buttons.
3. You’ll notice that Task Band color is same as the Menubar color. Actually it should look same as it looks in My Computer but its a goof up that it takes Menubar image to show its color instead of task band image defined in the Aero theme.
4. Look in following screenshot. Its clear coz I have also tried using another theme having different menubar color and taskband is showing the same color in this theme too.
Actually it should look like following:
So its a goof-up that “Programs and Features” task band doesnt use the actual task band image and in stead it use Menubar image from the Windows theme.
I have also posted them at my site: 