Hi Maria,
Since you mentioned that you did the LR free trial, then that means you had the US version of the software before you purchased LR (with UK content). When you bought LR UK, we gave you instructions for installing (from the start) because there is a different software version for UK.
I would suggest that you download and install the UK software, so we can avoid conflicts (with the US version) in the future. In case you need detailed instructions on how to do this, please see this page:
http://support.brillkids.com/index.php/article/little-reader-install-and-setup-from-accountI hope this helps!