Try NIH image. http://rsb.info.nih.gov/nih-image/ Cheers, Darren -- Darren Tyson, Ph.D. Candidate Cell and Molecular Biology Program Saint Louis University, St. Louis, MO tysondr at slu.edu or darren at primary.net http://scimart.com/darren/ (soon to be updated and moved to) http://www3.primary.net/~darren/