Since you really didn't give us a whole lot to go with, here are a few suggestions/ideas:
1. Test it on another unix/linux apache box.
2. Try using CGI::Carp qw (fatalsToBrowser);
3. Check out earthlink's support page in regards to perl/cgi

"The social dynamics of the net are a direct consequence of the fact that nobody has yet developed a Remote Strangulation Protocol." -- Larry Wall