Installing fonts - Windows weirdness

[RCS]

  I have a strange problem when installing fonts on Windows computers. The
fonts will install correctly (just copying them from a 'source' folder to
the 'Fonts' folder) but the system will not recognize them...even after
restart. The strange thing is, when I go to the fonts folder (checking if
they are there), they are now 'seen' by the system (I guess openning the
folder is refreshing something?). Is there something else I am supposed to
do?

Thanks for any help,
JR