if i can set my satellite channel to channel 14 or was it 18 as someone mentioned i can get 100% signal bar also on left and right

hi guys,

I got my Byond installed nearly two weeks ago. New grey dish, decoder, card, hdmi cable. Subscribed to Sports initially, but later added Learning. The problem i facing is that the decoder freezes/hangs randomly while watching astro. Happens in variety of channels. First I thought may be its the heat, but still same if using air-cond and leaving the TV cabinet cover wide open. The freeze happens at random times as well, some times within 10 mins of starting Astro, sometimes after 1 hours. The LED on the decoder will also freeze, for example "C831" will be come "C" or "1" or "3". At times when I off and on the Astro decoder, it even hangs when booting, so the decoder will show "b" or "t", for example. The installer came and did update, and he stayed for 15 mins - no problem. But the problem recur again about 1 hour after he left. And still recurring daily, few times a day. I usually wait 5 or 10 mins before switching on the decoder again and the problem sometimes recurs.

TV is LCD 42" LGLF20.

Decoder to TV: HDMI
Decoder to Amp: Red/White cable and Coaxial(used during HD channels). Problem occurs even if use the red/white audio cable only (coax unplugged).
Software date 23 Dec 2009.

Anyone else having same problem?