Yes, it does peak at around 14millivolts. It would seem strange to do that though while this happened last time during a blank - not even an empty tin. I did notice since the last post that the device manager for the pc indicated a TNT GPIB, which is not correct. This was from using the NI driver installer. I uninstalled that entry, and the gpib still communicates with the Isodat software. So now I'm keeping an eye out to see if the problem repeats.
You misspelled my name? I didn't even notice. :-)