Hello, The output of fslerrorreport is attached. I do not think the error is due to RAM/swap issues; I have the majority of 2GB of RAM free when running. FEEDS works fine as have several previous FSL analyses, so I don't think it's a problem with our installation. I've tried running on multiple machines, as well as reducing the number of contrasts requested and whether the EVs contain temporal derivative or are orthoganlized, to no avail. Running the same analysis but omitting EVs 3 and 6 seems to work just fine. Although there is some correlation between EVs 2&3 and 5&6, I don't get a warning about either being rank deficient. Any other suggestions on the problem would be very much appreciated, and apologies in advance if I'm overlooking something obvious. Many thanks for your help. Best regards, Jonathan On 2/7/07, Mark Woolrich <[log in to unmask]> wrote: > The most likely explanation is that you ran of RAM plus swap space, or possibly you ran out of disk > space. If you have checked these then get back to us with an fslerrorreport. See the FAQ: > http://www.fmrib.ox.ac.uk/fslfaq/#general_reporting > for how to do this. > > Cheers, Mark Woolrich.