thanks for your prompt response much appreciated .i have 2 viaccess cards for different channels and wonder if interchanging these cards can cause damage to the card, because in my technomate 5200 with multicam fitted(5600) i have lost the bis channels on freq 11,861 but channels on 12,692 are showing ok, is the card faulty or the multicam or do i need a multicam patch--- if so, how do i obtain it ? thanks for your help john