failed termcap lookup on xterm at ./pwp.pl line 72

I think this is the cause for it, although I don't understand how is it possible that the terminal "xterm" isn't defined in the termcap database. Maybe you and wazoox could try running it in a text console, assuming the terminal "linux" won't give trouble!

It also amuses me that the error appears at different lines on each system :)

$ TERM=foobar ./pwp.pl -ta
Subroutine CORE::length redefined at (eval 14) line 1, <> chunk 1.
Can't find a valid termcap file at ./own-11-obfu-11.pl line 76
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Update: Oops, some <tt> tags had slipped into the quoted text.