Solved - Content Module Category Text Display

-- url of the page with the problem -- : inlandcomputerservices.com/index.php/online-shopping
-- HikaShop version -- : 2.2.1
-- Joomla version -- : 2.5.14 (with Gantry v4.1.15)
-- PHP version -- : x.x.x
-- Browser(s) name and version -- : Google Chrome 28.0.1500.95 m
-- Error-message(debug-mod must be tuned on) -- : N/A

I'm using a HikaShop Content Module in a sidebar, in order to give a categories listing (i.e. a side menu). Everything appears, however, the sub-categories are not being separated to a different line and the text is joined from one subcategory to another.

Having spent a lot of time looking into this, it appears to be related to the size of the sidebar, as other sub-categories which have longer text names, appear to be appearing correctly. In a list format, I would have expected to see at least a line-break between category items, but it doesn't appear to work like that, so maybe this is a CSS thing ?

Annotated screenshot attached to show problem.

Any help or advice greatly appreciated.