I am have a Geonics EM38-MKII and am having trouble connecting bluetooth with my mobile software. I am using a tablet running Windows 7 OS. I am able to recognize the bluetooth connection in the control panel, but when I try to collect data in the software, windows 7 asks for a passkey code. The EM38-MKII is an open port that doesn't require a passkey. I have tried the default codes 0000 and 0001, but no success. I am thinking this is a Windows 7 problem, but wondered if anyone has any ideas on a work around.