>Oh, one tip: activate the 
> 'Options'/'Build'/'No error pages'
>AND
>'Option'/'Option'/'Build'/'Do Not Purge Old Files'
>this may do the trick, and keep files. (the 'No error 
>pages' should force the engine to NEVER erase local 
>files with error pages, and the 'Do not purge' option 
>should prevent it from erasing)

Ah ha! It is 'No error pages' i need! 
I knew about 'Do Not Purge' (-X0 option). 
I use the command line version and didn't notice 
the -o0 option...sometimes things go easier with a 
GUI since all the options are 'on display'.

Thank you very much, -o0 appears to do exactly what i 
want!

john