The camera is fairly old and has done me very well. 2007.
I only use it in the SCN setting and vary the Func setting between Foliage, Snow, etc. No it has not been under or overheated. I think I dropped it onto a carpet a year or so ago with no apparent effect.
It seems to have very faint horizontal lines across the recorded picture.
I think I don't understand 'trying it in Auto'.
I think you are saying that if the Auto bit doesn't work then bin it.
OK, fair enough.
Thank you very much for trying.