fixed the error messages but it still locks up after the temp= 0 lcdout
and the vb program still can't open the port because of it
sorry again i think it's time to give up for a while, i don't want to take up any more of your time. I will add to the post if I get it going.
Thanks again to everybody.
I can't believe such a simple thing as a serinn(now a debug) is causing such a problem.
Snap