I trying to use xav-2s to use my xvi compact to a tv but im getting double screens.
The XAV-2s only converts 15kHz RGB to composite/Svideo, it does not convert VGA. You're getting two screens 'cause the X68 is, in effect, sending twice as much data to the XAV. Switch the game to 15kHz mode.
i got it boot disk runs at 31khz