No signal

[Marilen Corciovei <len@xxxxxxxxx>]

Thanks a lot for your responses. In my opinion it should have been 
rather easy to detect the lose of signal. Since i already do a lot of 
processing (motion detection, image agging etc) and i want to do that at 
least 20times/sec and i also have an external switch so the signal may 
be lost only once in 4 frames it seems much more easy to detect the 
"blue image".
Thanks a lot,
Len