Nvidia Geforce 6600 GT TV output

[gemini33]

I have this problem: when I switch the output on TV (ALT+F5) I must repeat two times the commutation, because with the first I remain on monitor and the screen of BSPLAYER becomes black. When I switch from TV to monitor BSPLAYER go on error.With others player this is not succeeded and all works fine.The card video is one Nvidia 6600GT with whichever driver on Window XP Pro SP2

[Tizio]

Have you tried to change Overlay mode in BSplayer preferences?
To do this, open Preferences window (CTRL+P) then go to "Video" section, then "Video rendering"; once there try different settings between Overlay modes / RGB / VRM.
Or as alternative, try to modify the video card settings