Hey: I have been able to normalize hundreds of arrays with RMAExpress 1.0 beta 8 compiled from source on an Ubuntu 7.10 system with 8 Xeon cores and 16GB RAM. However, I am unable to normalize a set of 2887 arrays. They appear to load but then I get a segmentation fault. Your beta 8 bug fix (- Fix a potential crash situation in extremely large datasets (eg would crash at approximately 1578 HGU-133 plus 2.0 CEL files)) sounds like my problem, but maybe the extra arrays kill it? Thanks, Alex -- Alex Feltus, Ph.D. Assistant Professor Clemson University Department of Genetics & Biochemistry Biosystems Research Complex Rm 302C 51 New Cherry Street Clemson, SC 29634 864-656-3231 (office) - (864) 656-6879 (fax) http://www.clemson.edu/genbiochem/faculty/afeltus.html ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping