According to the Freetronics website, that board also uses pins 11 and 12 for communication with the Ethernet and SD card parts. That would explain why the LCD works before the Ethernet.begin(), but not after.
According to the Freetronics website, that board also uses pins 11 and 12 for communication with the Ethernet and SD card parts. That would explain why the LCD works before the Ethernet.begin(), but not after.