PC : C2D 2,7GHz, 2GB RAM, GF210 512G ; cgminer v4.5.0 ; multipool.us (Share Diff = 64) ; router i firewall set ;

mp.bat:
cgminer --config mp.conf -o stratum+tcp://eu.multipool.us:8888 -u user.id -p password

mp.conf :
{
"pools" : [
{
"url" : "stratum+tcp://eu.multipool.us:8888",
"user" : "user.id",
"pass" : "password"
}
],
"scrypt" : true,
"kernel-path" : "/usr/local/bin"
}

User and pass are the same as ones you for multipool.us.
cgminer run bat file, pick up the configuration of mp.conf, display : No devices detected network diff set to 27,4G

With cudaminer I have 4,5 khash/s, but never happend on main page multipool.us, worker id list is empty, and after couple days i did not get anything for "work".

I now interested in the proper setting and what hashrate I may expected, actually what amount of btc. Price of electricity and hardware is zero.
Thanks in advance!