Super Grafx - Black screen problem

[earwig999]

Hi All,

I'm using a Raspberry Pi v3
Recalbox 4.1 (unstable)

I have managed to get my 8bitdo controller to work via bluetooth fine but I have one more issue.

The Super Grafx emulator boots roms, but they hang at a black screen.

I'm in the UK on a PAL TV so wondering if as all of these are USA (NTSC) roms do I need to set a force PAL option somewhere in the config?

Let me know if you need more specific information.