> Is there such a thing as an implicit -i option? What I'm 
> trying to get at is: 'if there was already an aborted 
> session in progress, then finish it first, otherwise, run 
> a new session'. 

Run a new session? You mean update it instead of continuing 
it?
> I think this may be related to some strange behavior I've 
> noticed on my own machine: every time I run httrack to 
> refresh my local mirror of a website, it /always/ deletes 
> ALL the files in each directory, before redownloading 
them 
> all afresh! Since some of the directories contain 
> gigabytes of files, this is rather heartbreaking.

?? It deletes them first?? Or retransfer them? This 
shouldn't happend, except if the bogus remote server was 
unable to fullfil the update request given by the engine