Lpc2000

I am now getting acquainted with the crossworks compiler and lpc2104.I
built my own board and downloaded the programs given in this forum as
starting point.But the hex file created after compiling the code does
not run.The program is to toggle a pin (blink_ADS_1.2) given in file
section.What is wrong since a sample program using winarm ran
perfectly.Can somebody suggest any solutions.Thanx