Windows Vista uses large icons on the default Start menu, and it hides the settings for the small icons are attractive well. No matter, we have located it.

Just Right click on the start button>> select Properties:

Then click the Customize button:

Now scroll down all the way to the bottom. You must see a checkbox for Use large icons.

which you will want to uncheck:

A lot superior, mainly if you pin your favorites to the start menu: