Hey Hurghanico, thanks for the reply.
What I meant to say is that;
* At first I had my Pod HD500X connected via 4 cable method to my H&K amp, I used FS1-FS8 (Stompbox mode) and had a single effect on each FS. All worked fine.
* Then I connected a Midi cable and figured out how to make it work. I got it to work (FS1 being Clean channel on the H&K amp, FS2 Crunch channel and FS3 Lead channel)
on the rest of the FS4 to FS8 I have several effects as chorus, reverb, delay, boost etc. (again a single effect per switch)
The problem now is that those effects don't work anymore, I checked it and they are all still programmed but I can't hear any difference when they are switched to "on", not even with extreme high values.
Maybe this make more clear what I was trying to say? English is not my first language but I guess you already noticed, sorry for the question seeming complicated while in fact it's not...
Also I checked the manual as suggested by Stormstudios but I didn't find anything in there that clears things up for me, as far as I know I have done things correctly.