Hi! This may be a stupid idea, but have you tried to go to start->control panel->system->hardware->device manager and in the COM1, right click->properties->port configuration? Note: I have the spanish version of WinXP, the names could be different. Regards -- Metis Adrastea http://metisadrastea.blogspot.com/ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist