unc problem on saa7134

Dear All,

I have a Compro Videomate DVBT 200A (I submitted a patch to support this 
card back in 2006 - thanks very much to Hartmut Hackmann for helping).  
It has worked fine for years, but recently my motherboard died and I 
replaced it with a board based on the NVIDIA nForce 610i chipset 
(http://www.asrock.com/mb/overview.asp?Model=n73v-s).  Now the card 
delivers poor picture quality. tzap shows the following output:

using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
tuning to 191625000 Hz
video pid 0x0200, audio pid 0x028a
status 00 | signal 9898 | snr 0000 | ber 0001fffe | unc ffffffff |
status 1f | signal 9898 | snr fefe | ber 000000e0 | unc ffffffff | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000d8 | unc 0000001c | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000d6 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000c8 | unc 0000001b | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000e0 | unc 0000001c | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000e6 | unc 0000001b | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000d2 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000ce | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000c8 | unc 0000001b | 
FE_HAS_LOCK
status 1f | signal 9898 | snr fefe | ber 000000c8 | unc 00000053 | 
FE_HAS_LOCK

I can't remember exactly what values I used to get, except that unc used 
to be 0.

I'm using kernel 2.6.24-26 from Ubuntu 8.04.3 LTS.  Does anyone have 
ideas as to what my problem might be?  Things that have changed in the 
computer are RAM, CPU (was AMD Sempron 2800+, now Intel Celeron E3200), 
and motherboard as described above.

Thanks very much,
Frank.


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