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Congratulations strongm on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
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Getenv helps prevent a segfault, very weird!
Its probably not that. Your compiler might be doing something naughty when it optimises your code. Try printing out all of your variables before use or setting a flag according to their value. Also strip out as much code as you can so that your left with only the Xt statement. I once had a...
