Cannot find the styles in my styles folder

Hi,

For some reason, my new version of Endnote (Endnote 20) cannot find the styles in my styles folder. I have changed the styles folder in preferences to c:\Program (x86)\EndNote 20\Styles but when I open the Styles manager it only shows the 500 preinstalled styles and not what is in the folder. Hence, I cannot install new styles. Does this seem familiar to anyone?

Gunnar