Stop Start Menu automatic side-scroll

[SngBrdb]

I swear I've seen information on how to disable this, but I haven't been able to find it again - here, or anywhere else.

In the Windows 7 Start Menu, as folders expand, if the names of folders or shortcuts are too long, the menu text begins to automatically side-scroll or jump left and right. This is extremely annoying and makes it hard to read as you move the mouse over the menu items.

How in god's name do you disable this behavior??!?