Hi Dianne, I can't answer your questions concerning relative speed of FSL programs, but I can give you my opinion based on my experience with Leopard, which I'm running on a few Macs. I would suggest you at least wait until the 10.5.2update is available (next month probably) before upgrading. Currently there are a number of outstanding bugs that make Leopard a bit of a pain. For example, there are problems with writing to Windows shared volumes which can currently only be resolved by having the admin of the shared volumes change the security settings on them - something many admins will not want to do. Hopefully these bugs will be fixed in 10.5.2, which I understand already has a huge list of fixes. -Tom On Jan 24, 2008 4:02 AM, Dianne Patterson <[log in to unmask]> wrote: > Hi All, > > I have a nicely functioning fsl setup on tiger...no issues... > is there any reason to seriously consider upgrading to Leopard? > -other than it looking pretty cool? ; ) > > e.g., Does the "true" through-and-through 64 bit character of leopard > make it faster or more reliable at running bedpost, probtrack, tbss etc? > > Thanks in advance, > > -Dianne > -- > Dianne Patterson, Ph.D. > [log in to unmask] > ERP Lab > University of Arizona > 621-3256 (Office) -- School of Psychology and CLS University of Reading 3 Earley Gate, Whiteknights Reading RG6 6AL, UK Ph. +44 (0)118 378 7530 [log in to unmask] http://www.personal.reading.ac.uk/~sxs07itj/index.html http://beclab.org.uk/