Lpc2000

Hi, Brian
I actually use the I2C interface on a LPC2138 to drive a 
128x64 graphic display (you can see it on the photos folder)
The I2C works correctly for me. (clocked at 1 MHz)
Anyway you don't say how you drive the I2C interface. 
I use an interrupt driven routine...
Anyway, when I tried to read the display status, I had to modify the 
routine because the status i had founde were a bit different from how 
the Datasheet explained.
I hope this can help.
Greetings.
D.Bertolino