Google Chrome: Vertical scrollbar disappears on some web pages, maybe due to a strange toolbar

Question

One of my customers have trouble viewing some of the pages on our website. Specifically it is the vertical scrollbar, that disappears on some pages.

She is using Google

Answer 1

I did the same thing that @Carey Pico did and it worked
disabling extensions.
I first ran into this missing right scroll bar problem when opening Yahoo news pages today. I disabled all extensions
(access tools --> extensions)
and got back my right scroll bar where it should be.