Hiya,
Sorry - I can't work out how to get the screen prints uploaded in a readable format, but I've checked my settings as a comparison. Bear in mind I'd just driven home from work (50 miles) and she was still warm.
My temp is reading around 167, so I would imagine for one that isn't warm (sorry Rob!) the reading of 267 (or thereabouts) does seem a bit high.
Datatek might be onto something there, most engines I know when they overheat tend to stop, but not sure if it would be the sensor and a high limit, or just because the engine can't keep going full stop!
Hope this helps and points in the right direction.
Cheers
Marc
(PS, out tonight, but will post htm/screen prints later if required and someone can explain how to!!!!)