Re: use seems to be case INSENSITIVE!!

[linuxer]

Looks to me as if it is a local issue with your perl installation (maybe ActivePerl?).

I gave it a try with my self compiled perl and got:

$ perldoc -l IO::Socket IO::socket CGI
No documentation found for "IO::socket".
/usr/local/lib/perl5/5.10.1/i686-linux/IO/Socket.pm
/usr/local/lib/perl5/5.10.1/CGI.pm
$  perl -MIO::socket -e1
Can't locate IO/socket.pm in @INC (@INC contains: /usr/local/lib/perl5
+/5.10.1/i686-linux /usr/local/lib/perl5/5.10.1 /usr/local/lib/perl5/s
+ite_perl/5.10.1/i686-linux /usr/local/lib/perl5/site_perl/5.10.1 .).
BEGIN failed--compilation aborted.

(I added CGI to test if multiple arguments are OK)

As I currently don't have an ActivePerl at hand, I cannot test furthermore.