No improvement after adding the following line to system.h after #include <rtems.h>: #include <rtems/rtems/ratemon.h> _________________________________________________________________ http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=http://hotmail.com/enca&HL=Market_MSNIS_Taglines