Lpc2000

Hi all.  I am relatively new to using the philips 2129 and I am 
having some troubles using the flash program utility that comes with 
the evaluation version of pathfinder.  Intermittantly, when I am 
programming I get the following error:

Download verification failed at address 10
Expected: 0x18 Read 0x98

Don't know what this is caused by or what this error means.  If any 
of you have any suggestions.  The code I have written compiles fine 
and is just modified version of one of the examples.

Shane.