Kevin A. Foss:

Is there something special that needs to be done to pass strings by value?

Yes, there is: fixing a bug in GPC... :-( This is a known bug, and will be solved sooner or later. In the meantime, you might have to use the obvious workaround, making a local copy of the string in the function. Thanks anyway for the bug report, Frank -- Frank Heckenbach, Erlangen, Germany fjf@gmx.de http://home.pages.de/~fjf/links.htm