Started my truck today and 4 codes showing

Where are you getting these numbers at? Actual Cummins fault code is a 3 or 4 digit number, SAE fault codes are usually a 2 or 3 digit number followed by a single or 2 digit number. Nothing has 3 separate numbers like that. Do you have a Check, or Warn engine light on?

 

Scan gauges do not always display codes properly. That number format is not any fault code sequence I recognize. If they are fault codes, they aren't active right now. Active codes will trigger warning lights. Scan gauges also pick up all electronic modules communicating on the data link. Those could be diagnostic messaged from on component to another and could be completely meaningless to you and me. Those could also becoming from the ABS, or cab computer and have nothing do to with the engine. Honestly, I would just ignore it.

 

Insite works happily on my 8.1 Windows (MS Surface)

What version of insite do you have?

 

INSITE™ 8.1.0 Software Download (Windows 7, Windows 8.X)

I see this on the download page.

Your windows 8 PC, its not an older Microsoft Surface is it? The first RT versions will not work (just checking as i made that error personally and had to use a different model)

 

paste in the exact error it gives you, i'll look in it and try and replicate the issue..

Like i said, works on my windows 8, then a have a virtual machine running win 7 and its good there also..

You're 100% sure its not just the licensing system stopping the app.. you have to have a license for it to each work, the app suite has a license manager..