ps/2 mouse compile errors

Hello all,
I'm new to Arduino and am trying to get the ps2 mouse library to work. When I try to compile the ps2_mouse code from arduino playground
URL=216.38.50.214/playground/ComponentLib/Ps2mouse
I get these error messages


/home/chrisso/Programs/arduino-0011/hardware/cores/arduino/WProgram.h:13: error: default argument given for parameter 3 of 'long unsigned int pulseIn(uint8_t, uint8_t, long unsigned int)'

/home/chrisso/Programs/arduino-0011/hardware/cores/arduino/WProgram.h:13: error: after previous specification in 'long unsigned int pulseIn(uint8_t, uint8_t, long unsigned int)'

Couldn't determine program size:


I'm running Fedora 8 Linux and am using a Diecimila.
What am I doing wrong? I can't find anyone else having the same problem.
Thanks,
Chris

Fixed - I was using v.0011 - Update to v.0012 - it should work