Hi there, My Logic Pro 9 on my Mac Pro crashes every time I want to load an external EXS24 Instrument. However I have Logic Pro 9 on my MacBook Pro installed too and the EXS24 Instruments in the same folder and no problems at all. There is no problem using original EXS24 samples, just with the self-added ones. I have placed my EXS24 Instruments in this folder: Library/Application Support/Logic/Sampler Instruments/ The folder is called "00 Instruments" and the sounds in it are always folders with all samples in it and one .exs file along. When I load an old project with these samples there is no problem at all. Just by changing them it crashes... Logic just hangs itself up. I tried renaming the folder, I replaced it several times. I just have no clue what to do. I experienced the problem with several version of Logic 9. Currently I have 9.1.1. Doesn't matter if I use 32 bit or 64 bit mode. I have the exact same version and the same library management on my MacBook Pro and no problems at all.. Please somebody help me. Thanks very much !