Abimbola:
See above. I believe that you may have run into some sort of system limitation. There must be ways of increasing system resources available to applications on OS X (there is on unix systems, and I believe that OS X is, at its heart, a unix system).
Yes, it's a Berkeley unix. Haven't found the incantation yet.
Tom
Thomas D. Schneider, Ph.D. Senior Investigator National Institutes of Health National Cancer Institute Frederick National Laboratory for Cancer Research Gene Regulation and Chromosome Biology Laboratory Molecular Information Theory Group Frederick, Maryland 21702-1201 schneidt@mail.nih.gov http://alum.mit.edu/www/toms