newbie problem with LCD library

Hi all,
I’m using Arduino 0010 software on Windows XP, and I’m working through the tutorials. I just loaded the LCD library (it shows up under Sketch> Import Library in the software so I believe I installed it correctly). But when i try to use the sample program in Heather Dewey-Hagborg’s tutorial, I get the error message:

undefined reference to ‘LiquidCrystal::LiquidCrystal()’

and below that a string of error codes like:

LiquidCrystal.cpp:8: error: declaration of C function ‘void pinMode(int, int)’ conflicts with
C:\Program Files\arduino-0010-win\arduino-0010\hardware\cores\arduino/wiring.h:74: error: previous declaration ‘void pinMode(uint8_t, uint8_t)’ here

Any ideas what I’m doing wrong? Thanks.

searching on LiquidCrystal.cpp:8: error: brings up this thread that covers a few ways to get this to compile