Hi, them boxes are very badly designed...
You need to put something on timer then record it,
When it says "Hard drive full or not installed" it means Hard Drive empty...
I think thats the case, phone up the person who you got it off, they will tell you exactly whats wrong with it..
Anyway it needs new software, heres some info about code problem.
go to http://thechatterbox.cc
and download the Chatterbox toolbar. Then Downloada program called KeyMaster on there.
Press MENU then press the Yellow button
Pres MENU then press 1570, go to Nagravision, Either enter provider number (look below) or Select your operator.
Now go to 00, Input Code into "DATA", press OK, Now go back up to 00 and press Right button, to change it to 01, Enter the 01 code in.
Provider ID is as follows,
Before Virgin Media took over, type in what ever code is next to your old supplier..
NTL - 5401
TELEWEST - 5a01
C&W - 5c01
When you find your codes of the Keymaster, you should have Key 00 and 01,
On your screen go to 00 and type the code you got of the internet,
Now do the same for 01,
The codes will change every day until new software is released.
Use the key on the bottom of your screen to type in the Letters.
Keys as of 29/11/2008 (Might have changed by the time you read this)
NTL - 00: CD 11 58 05 EE 96 E7 F3 // 01: EA B7 BF B2 D5 AA 46 AB
C&W - 00: 00 58 8D CF 27 98 04 ED // 01: 2A E0 72 B0 9E 07 9B 5D
TW - 00: 98 B0 BA 52 D3 21 08 B4 // 01: D2 EA 29 B7 B5 52 E9 AD