Timeout is not disabled when using the extra parameter.
The following two seem to do the same:
prompt($question, $default, $timeout);
prompt($question, $default, $timeout, 1);
System info:
Perl 5.8.8 x86_64-linux-thread-multi
RedHat 5.4
Linux kernel version 2.6.18-164.6.1.el5
x86_64 GNU/Linux
Thanks for your work on this module!