EL 3020 manual key problem

[floyd1]

Hi to all.
I have a problem which maybe someone can help. I have the EL 3020 with last firmware installed dated 26/03/2009. I'm trying to input DIGI TV keys manually and after i press ok to save they work but only for 1 minute they return to the old keys. Looks like the receiver is not keeping the new keys.
Any ideas please?
Thanks

[edcasi]

Disable nagra autoroll
Menu 2121

[floyd1]

Thanks mate. It worked.