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> I suspect the OSX is not distinguishing between residue name Cd and CD - > no idea how to fix it though! I had the exact same problem running a molecular docking program (AutoDock) where it would indicate carbon atoms as "C" and chloride atoms as "c" and thus make default filenames of foo.C.dat and foo.c.dat. Whichever file was written "last" would overwrite the other, giving me foo.C.dat == foo.c.dat. The problem is that "normal OSX file mode" for the Macintosh was constructed to be backwards compatible with the Mac filesystem (HFS+) which is a caseINsensitive format. My work-around was to manually rename those output files. The "real" solution is to reformat the hard drive into a case-sensitive mode. The relavent link on their website is: http://docs.info.apple.com/article.html?artnum=107863 While I was troubleshooting my problem, I recall finding a link where somebody recommended that you format one physical drive as normal (to prevent any troubles with native programs) and format a second drive for your case-sensitive data manipulations. This problem is the one reason I haven't completely committed to the ideal of a Mac-only lab. Adam Zabell Department of Pharmacology University of Pennsylvania
