Tuner failure or UNICABLE problem?

I'm having weird problems with my card, since the beginning.
the second tuner just does not seem to work, it times out while tuning to any channel (see syslog beneath).
Strangely i can watch 2 channels on the same transponder simultaneously, but as soon as they are on different transponders the tuner times out.
additionally this error appears in syslog when vdr initializes the frontends:
tbs6981fe - Current Delivery System and Mode are unknown
Does this have something to do with my SCR/UNICABLE setup or is the tuner defective? the SCR/UNICABLE configuration of vdr is OK since it worked on my last Dual-Tuner Card.
whole syslog here:
http://paste.ubuntu.com/9820401/
whole dmesg output:
http://paste.ubuntu.com/9820406/
/etc/vdr/scr.conf:
http://paste.ubuntu.com/9820442/
/etc/vdr/diseqc.conf:
http://paste.ubuntu.com/9820439/
Please let me know if you guys need any additional info or logfiles.
the second tuner just does not seem to work, it times out while tuning to any channel (see syslog beneath).
Strangely i can watch 2 channels on the same transponder simultaneously, but as soon as they are on different transponders the tuner times out.
additionally this error appears in syslog when vdr initializes the frontends:
tbs6981fe - Current Delivery System and Mode are unknown
Does this have something to do with my SCR/UNICABLE setup or is the tuner defective? the SCR/UNICABLE configuration of vdr is OK since it worked on my last Dual-Tuner Card.
whole syslog here:
http://paste.ubuntu.com/9820401/
whole dmesg output:
http://paste.ubuntu.com/9820406/
/etc/vdr/scr.conf:
http://paste.ubuntu.com/9820442/
/etc/vdr/diseqc.conf:
http://paste.ubuntu.com/9820439/
Please let me know if you guys need any additional info or logfiles.