Good morning - hope this is considered to be the correct forum on which to
post this!
The message subject really says it all - I have reinstalled Excel after
having to rebuild my PC and now can't run any macros, as the security setting
is set to "High". Even when I set it to "Medium" or "Low", it's still sets
itself back to "High" and another impact of this is that none of my custom
functions work either.
The Help mentions digital signing, but I can't understand why I would need
to do this for macros I've created myself on my own PC. The workbooks that
are affected at home work perfectly well at work.

Thanks in advance for your help.

Pete