Lpc2000

Hi, I have the Keil MCB2100 (www.keil.com/MCB2100) using the 2129. I
have spent nearly 2 days trying to get the UART 0 to do something. I
have got everything looking nice using the uVison3 Uart 0 peripheral
to help. However, when i attempt to connect the serial cable to
display a char in hyper terminal the board goes into a state of
reset..???? I cant see (since i haven't put in any code to handle the
reciept of chars) how this can happen. Anyway. 

Am i supposed to do more than just write the char to the Transmit buffer? 
I was wondering since (Pclk = cclk) There might be a problem here?
Is there anywhere i can find some sample code?