Strange behavior on Linkstar

Two out of four Linkstar boxes i have ordered recently are having the same problem...the "SAT" led will not come on.
When i telnet into the box and use the command tcmp,i can see that the coderate section as A/N instead of 5/6..
At first i thought the bootstring was missing so i applied it and it was accepted by the box but even after a reboot i still have the same problem..
Has anyone else experienced similar problem lately?

iceman

PS...I am definately on the right bird cos i have another linkstar working perfectly OK when connected to the same outdoor unit..