The R memory docs say that the --*-vsize option takes an integer argument and then 'G', 'M', 'K', or 'k'. When I start R using R --max-vsize=10G I receive the warning: WARNING: --max-vsize=10G=10'M': too large and ignored The system that I'm working on is a 64-bit Sun server with 40G of memory. What is the correct syntax for this command? Daniel Gatti UNC-CH