Leadtek PVR2000 problem

I have posted here after experiencing a problem with watching live tv using mythtv as posted in this thread http://plutohome.com/support/phpbb2/viewtopic.php?t=660

Following further testing, I had missed the following error when using dmesg:

Code:

cx2388x dvb driver version 0.0.5 loaded
CORE cx88[0]: subsystem: 107d:663c, board: Leadtek PVR 2000 [card=9,autodetected
]
cx2388x v4l2 driver version 0.0.5 loaded
CORE cx88[0]: subsystem: 107d:663c, board: Leadtek PVR 2000 [card=9,autodetected
]
cx88[0]/0: found at 0000:02:02.0, rev: 5, irq: 145, latency: 32, mmio: 0xf600000
0
tuner 1-0060: chip found @ 0xc0 (cx88[0])
tda9887 1-0043: chip found @ 0x86 (cx88[0])
cx88[0]/0: registered device video0 [v4l2]
cx88[0]/0: registered device vbi0
cx88[0]/0: registered device radio0
cx2388x blackbird driver version 0.0.5 loaded
cx88[0]/2: found at 0000:02:02.2, rev: 5, irq: 145, latency: 32, mmio: 0xf700000
0
cx88[0]/2: cx23416 based mpeg encoder (blackbird reference design)
cx88[0]/2: registered device video1 [mpeg]
cx88[0]/2-bb: Firmware and/or mailbox pointer not initialized or corrupted
cx88[0]/2-bb: Firmware upload successful.
cx88[0]/2-bb: Firmware version is 0x02040120
cx88[0]/2: queue is empty - first active
cx88[0]/2: cx8802_start_dma w: 720, h: 576, f: 4
cx88[0]/2: setting the interrupt mask
cx88[0]/2: [cd64b380/0] cx8802_buf_queue - first active
cx88[0]/2: cx8802_timeout
cx88[0]/2: cx8802_stop_dma
cx88[0]/2: restarting queue
cx88[0]/2: cx8802_restart_queue
cx88[0]/2: cx8802_restart_queue: queue is empty
cx88[0]/2-bb: VIDIOC_G_FMT: w: 720, h: 576, f: 4
cx88[0]/2-bb: VIDIOC_S_FMT: w: 480, h: 480, f: 4

For simplicity I have given the error line below:

cx88[0]/2-bb: Firmware and/or mailbox pointer not initialized or corrupted

This would now seem to suggest that there is a problem with cx88 drivers, although I have not managed to find any evidence of others on the internet who have experienced the same problem.

Any thoughts/comments welcome ?

NOS