Opening a CSS file with Amaya 6.4

Hi,

In Amaya 6.4 for Windows, the window dialogue Style / Style sheets / Open... can not be resized. 
If I link several style sheets and the files have a long path, I can not see the name of the files and it is
difficult to choose the one I want to open.

Thanks for your great work,
Barto
http://www.mclibre.org