Removing unwanted spaces in titles

Hi. A lot of book titles i get from my online databases look something like this:

The crisis of reason : European thought, 1848-1914

Now, I would like them to look like this instead:

The crisis of reason: European thought, 1848-1914 

Is there anyway to make Endnote automatically remove that space before the colon?  

“Change text” command from Edit menu can do that. 

Could you please specify which Edit menu this is?

The desired result should be that all book titles have no space between the primary title and the colon, and that it is not necessary to train each student to manually remove the space for each book title that has a subtitle.

RefWorks was able to remedy this by adjusting their import filters.