Did you try the Imaris-Huygens-Selima package that has been written
specifically for sgi machines. It is offered by Bitplane A.G. Information
at : [log in to unmask]
habo j. jongsma
department of medical physiology
utrecht university
pobox 80043
3508 TA Utrecht
the Netherlands
tel: +31-30-2538900
fax: +31-30-2539036