var.undef component and loop errors with strict in CGI script

I have a PTT based script I've been using for over a year that works fine when run from the shell, returns something like this:
00000002
00000015
00000025
00000026
00000027
00000028
00000029
00000030
When I run the script through CGI/apache, I get this instead:
var.undef error - undefined variable: componentvar.undef error - undefined variable: loop00000002
00000015
00000025
00000026
00000027
00000028
00000029
00000030
Any ideas? I can turn off strict, then it seems to work just fine, but I haven't seen these errors before and I'm concerned what else may crop up.
Any specific code snippets that might help?

Thanks!
-Jesse