jump to a site by clicking the first letter

This seems like a silly question but I can't find the answer. I just installed the newest version of WinSCP and imported my 100+ sites from my old computer. But now, if I want to go to a site named "site" if I click on the site list and hit "S" instead of jumping down to the sites that start with s like it used to, it "searches" for the next title that has an "s" IN it, which isn't terribly useful. Is there a way to go back to being able to hit s and jump down to the ones that START with s?

Thanks for your post.
Will see if more people ask for this.