Something i noticed now when the light was off, is that one LED is RED, should it be so? - The LED that is green is closet to the mini-USB port, the other one is lightning RED... 
http://s22.postimg.org/ahravqn6p/bild_1.jpg
From the proxy screen I see, that your user pass is wrong or you are using settings for different poolhttp://s22.postimg.org/ahravqn6p/bild_1.jpg
Hi Marto,
BTCGuild doesn't require an specific password, or am I wrong here? - I know it says in the proxy log "Authorization required", why is that - a setting/line in the .ini file that's wrong for me?
But Marto, why is the LED red, what does that LED indicate usually and should I be green if all is OK?
Thanks in advance!