[CentOS] Ghostscript in 5.3

Ever since I updated to 5.3, I have been unable to convert any ps
files to pdfs using the ps2pdf command.  I usually get errors like
this:

[mhr at mhrichter forms]$ ps2pdf doe81008
ERROR: /undefinedfilename in (doe81008)
Operand stack:

Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--
--nostringval--   2   %stopped_push   --nostringval--
--nostringval--   --nostringval--   false   1   %stopped_push
Dictionary stack:
   --dict:1120/1686(ro)(G)--   --dict:0/20(G)--   --dict:102/200(L)--
Current allocation mode is local
Last OS error: 2
ESP Ghostscript 815.02: Unrecoverable error, exit code 1

I can print the ps file just fine, but I wanted to save it in pdf
format instead of ps format, and that's not working.

I can use my VM WinXP machine and Adobe Photoshop Elements to do this,
but I prefer not having to fire up the VM for this.

Anyone else seeing problems like this?

Thanks.

mhr