[otrs] Zlib uncompress error

I'm getting the following error when I try to print a ticket from the customer's zoom ticket page: Undefined subroutine &Compress::Zlib::uncompress called at /usr/lib/perl5/site_perl/5.8.5/PDF/API2/Basic/TTF/Name.pm line 110. Line 10 in my name.pm is: $apple_encodings[0][$i] = [unpack("n*", Compress::Zlib::uncompress(unpack("u", $apple_encs[$i])))] Any ideas what might be causing this? Yum says Zlib is up to date. I thought that perhaps customer.pl was sending an extra "&" to name.pm.... Thanks in advance for any help...