No, they aren't required to agree in case1, and that's precisely the most likely cause of the OP's problem. Because Windows filenames are case-insensitive, use PLX and use PLx both load the same source file, but the contents of that file are, of course, the same both times, leading to all of its contents being re-defined.

1 The name of the file and the name of the package it contains aren't even required to be vaguely similar. Making them identical is just a convention to help preserve any sanity we programmers might possess, not an actual requirement.

In reply to Re^2: Undiagnosable Problem by dsheroh
in thread Undiagnosable Problem by dhannotte

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