[ESS] filename completion

[Giovanni d'Ario]

Hello everybody, I've just started usig ESS and I was really excited 
about command and filename completion. Everything has worked fine until 
a couple of days ago. Suddenly ESS has stopped completing file names 
(but it still completes command names). Honestly I don't think I've 
changed any setting (well, not consciously), so I can't realize what 
happened. I've seen that this topic has been already discussed in a 
previous thread, but in that case the problem seemed to be that file 
name completion had never been working. In my case it was (sigh). Does 
anybody have any suggestion.
Thank you in advance, my very best wishes.

Giovanni