Hi,
thanks for the replys, I thought it might be something to do with the internal osc. Tried the program code on a 16f819 worked fine.
So i got a brand new 12f675, checked the osc cal and band gap values, loaded the code and rechecked them. I did this because I have had other timing issues with these 12f675's. Some of which were down to me I think.
I like to stick with an 8 pin chip because I aim to fit the board into a keyfob, so space is tight.
First I will try the soloutions you have offered.
Thanks for your time.
Nick
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