Tamas Rudnai wrote: > That's a possibility, yes. As OP could change Bank0 and 1 maybe only > RP0 clear/set but not RP1? He's on a 18F if I remember right, so it's just straight forward forgetting to set the bank. Any bank can be set in one instruction on a PIC 18 with MOVLB. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist