If it's now detecting the miner it's hopefully just in your config. Hopefully others can help on that end as I have experience with cgminer, just not specifically w/ fpga device.
Can you post your .bat or shortcut config for cgminer that is causing the error (omit username/password) and we go from there!
i have a config file, but i don't use a .bat or anything else
my config file
{
"pools" : [
{
"url" : "http://stratum.bitcoin.cz:3333",
"user" : "r3wt.worker1",
"pass" : "<removed>"
},
{
"url" : "http://stratum.btcguild.com:3333",
"user" : "r3wt_1",
"pass" : "<removed>"
}
]
,
"api-port" : "4028",
"expiry" : "120",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}