Thanks Guys

I have come to the conclusion that faster is not necessarily better. I have read and re-read the 18F452 data sheet and my impression is that at 40Mhz I should be using a higher baud rate but years of using GSM modems at 9600 has taught me that this is a safe reliable connection speed.

Bruce I have ordered a 20Mhz Flash Lab and in due course all will be revealed.

Cheers