The sun website offers "Sun Grid Engine 6" AND N1 gridengine. Which should I use? If there's still a difference, I'm looking for the one with the best open source type support definitely no proprietary knobs and dangles wanted. Also any tips on how to to upgrade Sun Grid Engine 5.3p6 to version 6? TIA, michaelj PS: RTFM is a fine answer as long as you give a link to the FM. -- Michael James michael.james at csiro.au System Administrator voice: 02 6246 5040 CSIRO Bioinformatics Facility fax: 02 6246 5166 No matter how much you pay for software, you always get less than you hoped. Unless you pay nothing, then you get more.