I'm getting an error with the plugin appear. I don't remember the exact message, but it is something along the lines of "Error '5'. Invalid Procedure call or argument". This seems to appear sporadicly but always only about 5 minutes after the pc is started. I thought it might be the cable, but I checked that and all is very snug, I've left the obd2007 software running and it lasted for more than 5 minutes (had it running the full trip to the hospital which is about 40 minutes).
I'll try to get the exact message, but I just got back and am tired. I'll post it next time I drive.