Hello all, I have been trying to overlay PET data. When I open tkregister2, it shows the data as a gigantic white block. However, when I open my PET images in SPM, they look fine. I have tried searching the email archives and have not found an answer. What could this possibly be? Thanks, Thang

------------------------ Thang Nguyen Psychiatry and Human Behavior - Brain Imaging Center University of California, Irvine Email: thangqn@uci.edu

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