Why doesn't translation appear when I hover over words in the Google results page?

The Google translation usually appears in a small box when I hover over a word in any page on the internet except the Google search results page! This change occurred suddenly without me downloading or changing anything; not that I know of (Although I just downloaded a new version of Google toolbar hoping this feature will be working again on this particular page but to no avail). The translation in the small box used to appear before on the Google search results page, now it doesn't anymore. Please help me restore this feature on the search results page of Google! It's a Google toolbar option!|||You have to enable it again from the options menu.