[vdr] cTS2PES got 2 TS errors, 2 TS continuity errors - Channel Not Available????

Hi

I'm running vdr-1.5.12 with a TT-1500-C card, CI and alphacrypt multi-cam. All channels are encrypted.

Intermittantly I try and switch to a channel and I get a "Channel not available" message. After switching back and forth between channels, finally the channel will select, and everything's ok.

I've been trying to diagnose it, and so far all I can see is below: Jan 27 20:05:29 callin vdr: [3287] switching to channel 20 Jan 27 20:05:29 callin vdr: [3287] cTS2PES got 2 TS errors, 2 TS continuity errors Jan 27 20:05:29 callin vdr: [3287] buffer stats: 58656 (2%) used Jan 27 20:05:29 callin vdr: [3287] info: Channel not available! Jan 27 20:05:29 callin vdr: [4167] TS buffer on device 1 thread ended (pid=3287, tid=4167) Jan 27 20:05:29 callin vdr: [4166] buffer stats: 58280 (2%) used Jan 27 20:05:29 callin vdr: [4166] receiver on device 1 thread ended (pid=3287, tid=4166)

Can anyone tell me what this cTS2PES error is, and if it's likely to be to do with my problem? What else can I try?

Thanks

Simon