mythtv coloured bar [FIXED]

[the anxious]

Hi all

When I start TV playback, one coloured bar appears on the botton of screen (picture attached).
I fix this using the front end setup, on playback setup menu, fixing vertical scale from 2 (original) to 11. But when I reload router or restart the core mythtv back to original configuration, changing the vertical scale to 2 again and the coloured bar apperars again.
Anyone knows how can I fix this? forever?

Another question, what is the maximum bitrate to use with PVR 500?

Thanks in advance.

[the anxious]

hi guyz,

I don't know how, but I fixed this.. I just reset my mythfrontend (mythfrontend --reset) because I lost some configuration and when I setup mythtv again my tv worked like a charm.

tks