> Is the command line for the robots setting -sN[value] 
> (e.g. -sN0) or -s[value] (e.g. -s0). The manual seems to 
> say it is -sN[value] but I have modified the values via 

No, no - the 'N' stands for 'number' (this is not exactly 
clear in the documentation, I admit) - like -s0