Hello, I'm trying out the Core version of Hotspots before buying the Pro.
Unfortunately, I am getting a visual error: the left bar which is used to zoom the map is barely visible.
I attach a screenshot.

I am using Joomla 2.5 and the component is up-to-date and installed just fine.
The problem is the same with Chrome of Firefox.
Do you know how can I solve the issue?

Thank you in advance,
Adriano