Tcsh shell "alias" command seems to be truncating file names

Terminal Utility: As a Unix geek, on trying to port a large # of tcsh shell scripts to MacOSX (10.5.6), I have found a strange compatibility issue with the tcsh script "alias" command. After entering tcsh sub-shell from bash (by typing tcsh at the bash prompt, or by setting tcsh as the default shell), and defining the alias "surf_run" by sourcing a script containing the the line:
alias surf_run 'source /Users/username/SgiNew/molsurf/csh/radix.csh'
subsequent use of the "surf_run" alias (typing surf_run at the tcsh command prompt) seems to cause the system to truncate the name of the file to about 20 characters. The radix.csh file is actually present at the defined path, but the system seems to be truncating the file name to the last 16 letters or so in this case, and thus returns the following error message:
: No such file or directory.rf/csh/radix.csh
as if it is looking for a file rf/csh/radix.csh (which is not there, because the filename has been truncated)
The number of characters retained actually varies from case to case. Another similarly obtained error message had 30 characters retained in the file name:
: No such file or directory.rtoz/rtoz/rxtst/unix/login.csh
Q: Is there any system parameter or environment variable that I can modify that will allow the tcsh shell alias command to recognize properly file paths with large numbers of characters?

I cannot reproduce this error. A long alias string works fine for me. But the error messages -- as you reproduce them here -- do not look like the string is truncated. It looks like the "No such file or directory" message is being written on top of the string. Like maybe a new line is being swallowed somewhere.
I suggest taking further inquiries to the Unix forum, under "Mac OS X Technologies".
[http://discussions.apple.com/forum.jspa?forumID=735]

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PS. please remember to rate posts.

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