Hi Aaron To change the default OSC setting look in 16F877.inc and change:- device pic16F877, xt_osc, wdt_on, pwrt_on, bod_on, lvp_off, cpd_off, wrt_off, protect_off TO:- ! device pic16F877, HS_osc, wdt_on, pwrt_on, bod_on, lvp_off, cpd_off, wrt_off, protect_off Subscribe to the PICBASIC list for more advise on the compiler. Go to the Crownhill site to subscribe to it. Regards Les