OK. Timer2 is only 8 bits wide (didn't see that before). 1uS prescaled by 16 = 16uS. Multiply by 8 bits (255) = 4080uS = 4.08mS. Multiply by 16 postscaler = 65.28mS. Am I right? Am I right? I don't want a cigar - we're playing for a pack of Pall Mall.