Hi there, I am having trouble installing the font Helvetica Narrow. I installed it once on two Leopard machines (10.5.4), but when I clicked on it in Font Book it didn't display a preview and I received a message that there was a problem with the font and that it has been deactivated. I would have written it off as a corrupted font, but it displays a correct preview in the Finder under Quick Look and it installed fine on my Tiger machine. In addition, it has no problems on a friend's machine. After OS X deactivated the font, I tried multiple times to reinstall it but was not successful. Also, when I double click on Helvetica Condensed in the Finder, Font Book opens, but the window that lets you install the font doesn't display Helvetica Condensed in the pulldown menu, though it displays a preview in the Finder. Any ideas on how I can install these fonts and be on my merry way? Thanks!