Yes, I can confirm it is the JShopping Currencies module version 3.0.1.

I thought I'd mention just in case it is related, a similar behaviour. In the main menu is a link entitled Our Products. This link is set to take you to a list of the Joomshopping categories but when clicking on it, again it just refreshes the home page.
I also had a sub-menu link, which I have now disabled, which should have listed All Products but again this just refreshed the homepage. All other links seem fine.

I've only mentioned the above in case it may be related in some way to this issue.

Thank you for the informations, we'll check the problems and let you know.

Anything happening with this issue?

Hi,
We've just released an updated version of JoomShopping extension. It should fix the reported problems.
You may use the Joomla update system or the Manage Extensions page in JoomSEF to update your extension. Please note that it may require you to update or delete the already created URLs in JoomSEF for JoomShopping component after the extension update for the fixes to work correctly.

That's done the trick. Works a treat now. Great support.
Many thanks.