Hi, all; I have a question on memory utilization of R. Does R use only RAM memory or can I make it use virtual memory? Currently, I am using Mac OS X 10.3.3 with 1.5 GB RAM. However, I need more memory for some large size problem right now. Thanks in advance, Tae-Hoon Chung, Ph.D Post-doctoral Research Fellow Molecular Diagnostics and Target Validation Division Translational Genomics Research Institute 1275 W Washington St, Tempe AZ 85281 USA Phone: 602-343-8724