If you add a custom toolbar in the Windows 7 taksbar and set the toolbar view to Large Icons (and the icons in the toolbar are not set to Use small icons), the height of the taskbar unexpectedly increases by around 5 pixels, which makes a rather stupid gap at the bottom of the screen. If the option Use small icons is used for the taskbar appearance, the height of the taskbar is normal.

It appears that the programmers at Microsoft were not very meticulous while designing the Windows 7 UI; it is obviously a bug. I was wondering if there is a registry hack to fix this or if anyone knows any solution to the problem, except for the obvious one: "use the small icons"? Thanks.