Client requirements:

Windows PC: Netscape 4.77, 4.78, 4.79, 6.2 or Microsoft Internet Explorer 5.5 or 6.0

Macintosh: Netscape Versions 4.77, 4.78, 4.79, 6.2 or Internet Explorer Versions 5.0, 5.1

UNIX: Netscape Versions 4.77, 4.78, 4.79, 6.2

See: http://boreas.hpcf.upr.edu/help/recommendations.html