Thanks heaps for the help, guys! I bit the bullit and am now leaving the serial ports open all of the time. I still think it is a driver/hardware problem. When the ports go South even a reboot of the laptop the program is running on won't fix it. The hardware is all brand new, so it should have some bugs in it. Shouldn't it? :)
Anyway, here's a short page about the program, just for fun www.greschke.com/unlinked/pocus01.htm Thanks! Bob -- http://mail.python.org/mailman/listinfo/python-list
