Is there any limit in the number of file attached?

Hello there!

It was only yesterday that I tried to add references in both of my
Endnote X libraries and I couldn't manage to do it.

The "New Reference" button was not shown as active.

I tried to copy and paste an existing reference but the error message
"Reference limit has been reached. Cannot add more references to this
database" was occuring.

It seems that I cannot edit existing references either!

Does anyone know what would this mean? Did anyone have any similar
problems with Endnote X?

I am looking forward to your responses.