I'm getting access denied when trying to mine with the X15 GPU miner you have listed.
If your are trying to mine on a P2Pool ,
http://fire.altmine.net/... then you need to set the no-extranonce setting in your sgminer config file.
"pools" : [
{
"name" : "rig-01",
"url" : "stratum+tcp://fire.altmine.net:48698",
"user" : "
",
"pass" : "",
"pool-priority" : "0",
"no-extranonce" : true
}
],
...