Hallo everyone, I want to simulate a one-headed camera. I am looking at the SPECT benchmark in page 59 of the users manual, which simulates a 4-headed camera. Instead of changing the repeat number to 1 (instead of 4) is there an easier way of doing it? Thank you Maria __________________________________________________________________________ http://www.mail.gr - Get Your Free Greek E-mail Address at Mail.gr http://www.iFree.gr - Free Internet! Number: 801 2000 801, User/Pass: free